Alright ya took too long so I'm gonna choose the powers.
I've also added  an extra one which I'll explain at the end of this.

The first power is Space Manipulation
This power gives you control over space. Which means you can:

Create pocket dimensions

Portals

Other thing that I can't think of

The second is Slender(the abilities of slender man)
This power gives you many abilities which are:

Slender tentacles

Static stare

Teleportation

 Slender sickness

Mind control 

Regeneration 

The third power is Force manipulation.
The abilities that come with this are,

Applied Force:
An applied force is a force that is applied to an object by a person or another object. If a person is pushing a desk across the room, then there is an applied force acting upon the object. The applied force is the force exerted on the desk by the person. This means the user is able to manipulate that to where he/she can she can exert more force than he/she is actually exerting.  

Gravity Force:
The force of gravity is the force with which the earth, moon, or other massively large object attracts another object towards itself. By definition, this is the weight of the object. All objects upon earth experience a force of gravity that is directed "downward" towards the centre of the earth. The force of gravity on earth is always equal to the weight of the object. This means the user can manipulate it to where the weight/gravity of a person can be more than another, for example the gravity room from DBZ. The room works by applying gravity force specifically inside that room so on the inside the gravity can be 2x the gravity of Earth, on the outside it is just as normal. This means that the user can make it to where any object can be heavier than it actually is.

Normal Force:
The normal force is the support force exerted upon an object that is in contact with another stable object. For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book. On occasions, a normal force is exerted horizontally between two objects that are in contact with each other. For instance, if a person leans against a wall, the wall pushes horizontally on the person.  This means that the user can basically use telekinesis.

Frictional Force:
The friction force is the force exerted by a surface as an object moves across it or makes an effort to move across it. There are at least two types of friction force - sliding and static friction. Though it is not always the case, the friction force often opposes the motion of an object. For example, if a book slides across the surface of a desk, then the desk exerts a friction force in the opposite direction of its motion. Friction results from the two surfaces being pressed together closely, causing intermolecular attractive forces between molecules of different surfaces. As such, friction depends upon the nature of the two surfaces and upon the degree to which they are pressed together. This means if the user gets rid of friction in an object it can slide across a surface without any form of stopping itself unless someone stops them or hits a solid wall.

Air Resistance Force:
The air resistance is a special type of frictional force that acts upon objects as they travel through the air. The force of air resistance is often observed to oppose the motion of an object. This force will frequently be neglected due to its negligible magnitude (and due to the fact that it is mathematically difficult to predict its value). It is most noticeable for objects that travel at high speeds (e.g., a skydiver or a downhill skier) or for objects with large surface areas. this means that if the user gets rid of the air resistance in an object that is thrown it will never lose speed while in the air so if you throw something at 15mph the until it hits the floor, it will stay going at 15mph 

Tension Force:
The tension force is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends. The tension force is directed along the length of the wire and pulls equally on the objects on the opposite ends of the wire. This means that the user could make unbreakable ropes, wires, cables, string etc. What I mean about unbreakable is that it cannot be pulled apart.

Inertia:
Inertia is an objects tendency to stay at rest. When an object is at rest it will prefer to be that way and the same applies when it is in motion. When you push an object it will be harder to get it moving then to actually keep it moving and the same applies the opposite way. This means the user, if a gun shot is fired at the user, the user can get rid of or decrease the objects inertia to make it seem like you had been hit with a feather or not at all.

Um, I'm gonna be honest this is a way more overpowered power then I actually thought it would be. Like for example if you could manipulate one of these forces, you could be one of the most powerful characters ever.
Well back to the fourth and final power which to me is the most interesting to write about.

The user has the ability to make any object, animal or person anomalous properties of the users choosing, which in my opinion would be the most fun to write about.

Now the main character y/n doesn't realize that he(yes y/n's a he)has these abilities but has used the fourth ability five times without realizing and doesn't think anything is up. I will tell you them now.

Scp-216'The Safe':
SCP-216 is a 35.6 cm (14 in) high iron safe with a multiple-dial combination lock. The lock has 7 dials each with numbers ranging from 0 to 9. The combination cannot be changed while the door is open. The weight of the device appears to fluctuate in an obtuse manner. The door of SCP-216 can always be opened, but the accessible interior space appears to change depending on the currently entered combination. Objects placed inside SCP-216 may be accessed by re-entering the combination that was configured when the object was inserted. Objects retrieved from SCP-216 appear to be undamaged by the device. It is speculated that every possible lock combination results in a different interior, and that there are therefore 10 million available compartments.

SCP-005'Skeleton Key':
In appearance, SCP-005 resembles an ornate key, displaying the characteristics of a typical mass produced key used in the 1920s. SCP-005 seems to have the unique ability to open any and all forms of lock, be they mechanical or digital, with relative ease.

SCP-109'Infinite Canteen':
SCP-109 is a standard-issue United States Army canteen (circa 1899) made of a tin alloy and fitted with a heavy cotton cover and a black leather strap. When opened, the item is seen to be nearly full of water. A seemingly unlimited amount of water can be removed from the container without changing the water level or the item's mass, which remains a constant 3.16 kg. Probes of the interior of the container reported an estimated volume of 2.8 L and a shape consistent with the outside. 

SCP-294'Coffee Machine':
Item SCP-294 appears to be a standard coffee vending machine, the only noticeable difference being an entry touchpad with buttons corresponding to an English QWERTY keyboard. Upon depositing fifty cents US currency into the coin slot, the user is prompted to enter the name of any liquid using the touchpad. Upon doing so, a standard 12-ounce paper drinking cup is placed and the liquid indicated is poured. Ninety-seven initial test runs were performed (including requests for water, coffee, beer, and soda, non-consumable liquids such as sulphuric acid, wiper fluid, and motor oil, as well as substances that do not usually exist in liquid state, such as nitrogen, iron and glass) and each one returned a success. Test runs with solid materials such as diamond have failed, however, as it appears that SCP-294 can only deliver substances that can exist in liquid state.

SCP-458'The Never Ending Pizza Box':
SCP-458 is a large-sized pizza box from the pizza chain Little Caesar's, of their Hot-n-Ready variety. It is made of simple cardboard, measures 25.4cmx25.4cmx2.54cm (10inx10inx1in), and weighs about 20 to 20.49 grams depending on toppings. As a result of the unusual nature of SCP-458, measurement of weight is inconsistent. What makes SCP-458 an oddity is that, while appearing to be an ordinary pizza box, when it comes into contact with human hands, it instantaneously replicates within it the holder's subconsciously preferred choice of pizza, down to the favourite sauce, cheese, crust, and topping. It is not limited to the Little Caesars brand, as pizza from all major pizza chains, as well as local and even handmade pizzas have been produced. There seems to be no limit to its ability, except that it cannot make anything but pizza, and its toppings must be edible by normal human standards. The box is also rather indestructible.

There is another SCP y/n created but I've changed it up a tiny bit so if you see any changes in the description of it, I have purposely done to fit the story. This is it.

SCP-1983'Doorway to Nowhere':SCP-1983-1 is a two-story modern house in Lancashire, Preston. It is the house of y/n l/n.

The front door of SCP-1983-1, when opened, appears to contain a spatial anomaly. Neither matter nor light has been observed to exit the doorway, save for instances of SCP-1983-2 (though the anomaly is exothermic).

SCP-1983-1 is accessible through other entrances, including windows, the back door, and entrances cut into the back of SCP-1983-1. However, the front room does not appear to exist inside of SCP-1983-1. Doors that should lead to the front room instead lead to other doors inside the building. Measurements of the inside and outside of SCP-1983-1 are inconsistent. Holes cut through the interior walls of SCP-1983-1 that should lead to the front room lead instead to the outside walls around the front of SCP-1983-1, but stop three meters on either side of the doorway. Attempts to drill into the front room of SCP-1983-1 from the outside have led to the exposure of smaller portions of the anomaly, though instances of SCP-1983-2 have not been observed to exit them. SCP-1983-2 are bipedal creatures approximately 1.8 meters tall. They are vaguely humanoid, and entirely black in colour. They are highly aggressive and will engage any human on sight. When an instance of SCP-1983-2 comes into contact with a human(except y/n when he meets them), they extend an upper limb into the human's chest cavity, without any apparent damage to skin or tissues. Through unknown means, they then extract the heart, killing the human. Once it has acquired a human heart, the instance of SCP-1983-2 will return to SCP-1983-1 and the corpse will slowly turn to ash and blow away in the wind. For y/n and others y/n lets in it's just a normal house. SCP-1983 seems to know who y/n likes and will let in anyone who is y/n's friend but to those who purposely trespass SCP-1983's effect take place.

What do ya think? Well if it's anything that is positive or advice to improve it then it's good to comment. But if it's anything purely negative like"That sucks"or"Your the worst writer"then save it 'cause I won't care.