How should I get a b**** from messing with me?

This fugly girl I have to sit next to in art is such a ! She talks about getting naked and aul crap u know. Were doing a play I auditioned for the bad girl I nailed it but she said I'm to nice. The catch is she couldn't come up with one reason and when people said nora swears that's not sweet she said she only does that to fit in. She's white meanwhile she acts gangster. She stole my best friend. I wanna destroy her any ideas I don't want her to mess with me again