I headbutted my teacher's face over my paper.
Wow! Are you ok?
I'm gonna leave house soon because I can't handle myself any more
It is wrong to hurt other people if you are upset. You should try to study better before turning a paper in if you don't like your grade.
If a teacher gives me a grade I don't like, they will have to deal with me.
Teachers cannot give good grades just because the student might be upset. Instead of getting angry and hitting the teacher, you should ask her for help.