Am I sweet? Do I look sweet to you?

Name:
Age: 18
Height; Weight: 5'4, 132
Stripes: (grade- 1 stripe= 1st grade; 12= high school senior)
Reason for Admission: Violence. Yep. She was bullied for a very long time and got fed up with it and hospitalized 6 kids (May have put one in a tiny coma). What did the teachers see? Her licking blood off her nails with the kids on the ground. Where the hell were the teachers when she was getting shoved around?
Years Admitted: 5
Special Abilities: With her/someone else's blood, she can make her arm a human weapon. However, it only hurts people if she wants it to. If she's not battling someone or fighting for her life, the pain will only be for about 5 seconds. That said, she has a habit of stabbing people and catching them off guard. If she stabs them, a large whole is usually formed in their stomach before returning to its previous state 5-10 seconds later. The pain? Ummm... It doesn't feel good b-but it only lasts for 5-8 seconds! Usually!
Physical Strength: Fast and strong. Looks weak? Good. That's what she's pretty much aiming for. Fuck with her? I recommend you to not. Her physical strength is to the point that people think she's some sort of monster or a superhuman.
Mental Strength: Her mental strength? How about a 2? She can most definitely put up with shit in front of people. Behind the scenes? She may be somewhat of a mess. Insults hit her core and she can't find anything good about herself. Great at science. Reading? Meh, sure. Math?...No. Just no. Her average in math is usually around a D and if she's lucky, a C.
Weaknesses:
-Once she's snapped, she's a different person. Can't really control herself when she gets angry and some have said it was a multiple personality disorder because she goes sadistic as fuck.
-Hates/scared of bubbles.
Restrained?:
Yep.
Details:
Background Info:
Her parents died when she was younger in a car accident. She was about 10 years old at the time.
Taken in by a middle class family that was very strict and hated showing their actual emotions, she was used to dealing with crap.
--Blah, blah, she was bullied practically all of her life since she looks like bait.--
Got transferred her.
Interests: Sweets and blood.
Other: (fuk what i miss)