How can i deal with this problem?

[TaWanda]

well theres this girl and shes saying nasty things about me like im the dirtiest cheesiest ugliest person she saw she say that she can't stand me and want to ruin my life she say f**** my dead daddy and she say that she don't like me because im too nice and sweet and she text my math teacher i guess playing as me and i guess saying mean things towards her because she blocked me on twitter i think she hates me and im not like that i wouldn't hurt nobody im a really good-hearted person i cant stand people like that i just cant believe she don't really know who i am(i know who it is) she wont even talk to me and my friends really dont seem to even care and that hurts to because i be there 4 them through thick and thin but they barely talk to me its summer we on summer break Someone Plz Help Me