Here is a review for DatStoryWriter13

My comments will be in bold

Basics and grounding

Alright cool. Slight word of warning, I have a very strong love-hate relationship with creepypasta, so we'll have to see how this goes.

Character information

Alright so there's a fair few cliches here. The duo personality thing can be done well but is weirdly common in the creepypasta fan base, the most obvious example being homicidal Liu and Sully. This can be done well, like I said but for that to work you're going to have to make these characters more complex. Instead of just writing their personalities out in bullet points, come up with paragraphs that show all their traits. People have a lot more then one character stereotype.

As far as appearence goes, graphic, heterochromic eyes are also common and also don't make sense with no reason behind this. Eyes are a strange little thing in the community where they're a main focus point and are used to make the character more unique, Judge Angels is a good example. However, I believe that the more a murderous character fits in the more scary, because realistic is what you should always go for with horror, even when dealing with the supernatural.

So, I suggest making their eye colour normal and focusing on developing their personality and figuring out the logic behind the duo personality thing.

Relationships

Dead parents are always common in creepypasta, it needs to be executed extremely well to work in anyway for this universe because it's so overdone.
I feel like she should have some kind of friendship with someone before she becomes a creepypasta but I'll probably touch on the more later.

Now, I'm completely okay with oc x Canon and I support it with my whole heart in every other universe. Not this one. That's not because I don't like the 'canon' characters or anything, even though I can't say I'm the biggest fan, it's because we're dealing with psychopath murderers and I can't see them having a romantic interest in anybody. Eyeless Jack is a good example of that since after everything kicks off in his story, he doesn't care about anybody and is completely heartless. This makes any chance of a relationship unlikely. So, I just recommend removing any kind of love interest with Canon.

Backstory

Okay I'm gonna make this clear, you gotta work on this. The first problem is simple; you can't be arrested for verbal abuse. You can't get locked up for yelling insults at someone. You can have cps involved but I doubt it would be resolved in arrest, there would be a far more reasonable reaction. Either think of a more reasonable crime for arrest or rethink this whole bit.
Characters being bullied is a massive thing in creepypasta and half the time it doesn't make sense. No one is gonna be bothered if you have white hair, you might get the odd comment now and then but if anything people would find them cool.
There has been absolutely no mention of Soro until they just pop up in the fight. Where did they come from? How do they work? Why attach to her?
Then there's other questions with the Backstory.
Why were they raiding the house? Why were Jane and EJ working together when they have completely different motives for their actions? Where did the Puppeteer come from? Why did he save Lanna?
The whole snap thing in creepypasta is common too and doesn't make sense. People don't just lose their mind in a second and decide they're gonna be a murderer. If you're gonna go down that route, make the mental issues gradual and realistic, research mental disorders and don't glorify them in the process.
Also, try to not glorify murder or acts like it, it's meant to be horror and disturbing not edgy or cool.
Another thing I don't like about creepypasta is that most people make their ocs become a proxy and go and join Slendy. Slendermansion has never really been mentioned in any canon material and is really just a fan thing which I personally believe doesn't make sense. A house full of murderers and sadistic entities can only end poorly. I don't understand why Slendy made her a proxy anyway, she's just kinda picked without a reason behind it.
And where did all these abilities come from, but I'll talk about this next.

Really just go over all of this, I don't mean to be cruel but it's a Backstory that needs a lot of improvement.

Other

I have no idea where any of these abilities come from, as far as I understood she was a human with another being attached to her, then she has all of these powers all of a sudden. It's all fine and dandy making a character but your cations should have reasoning. Even if there was reasoning behind this, I would say to drop at least half of these powers since it's way too op and that makes a character less likable.

Stats

These stats are too high. I normally recommend a 5 at most as long as its balanced out with a 1. You want your character to be balanced and stable. This just doesn't work.

Final thoughts
I think you're gonna have to look over all of this properly and figure out how to make her a more well rounded character since she's very close to Marysue territory. But! With some work and a lot of patience she could be good, so don't give up.

*My critiques are simply at your request and to help improve your character. It is not my intention to cause any offence and you, of course, do not have to listen to what I've said. This is all just a bit of fun and I apologise if I have done any kind of damage*