Alright, you could call me a psychopath, mentally challenged and whatever, but the only way out is to either;
1) Take her for a brain test, because most likely she will have an advanced disorder, OCD or something else. Then take her to a mental asylum.
2)Kill yourself/ run away from home
3) Get rid of everyone. Permenantly.
I've been there. My 7 year old sister has an iPhone 4, she wants to have sex with every boy I know(including me(obviously I change the subject). Don't even make me go there when she's with her pay-to-be friends, or when she's playing something like Minecraft. When she's playing Minecraft, she tries to kill everything, and when she dies, she rage quits, crying, throwing my controller on the floor, and tries to kill everyone, and that's not an exgaggeretion. My dad says she's only young, but no-one listens to anyone, and my family's already on crisis point because of my sister. She almost broke my leg once, and she eats so many sweets and has so much gum(I hate both) her teeth have cavities. Those are her good points. Yeah, life's a b^^^h. I hate everyone.