I need a teen girl because im a teen guy to answer this question?

ok im 15 and this girl ive like since seventh grade that every time i think she like me and shell flirt end up going out with another guy. is finnally single again she origgnally acted all flirty and cutie and smart srry my thing but now shes is litterall stabbing me with **** and swinging a leather metal studed belt at me becuaes thats her thing but also i told her ive had a crush on her since seenth grade while we were texting two days a go and yetserday or more like two days ago no blankly said to everybody in our group at lunch as i was walking to clas ya he told me yesterday that he had a crush on me and it was so akward . she meant it in the akward creepy guy in the alley way so my question is what do i do hell this girl gives me insomnia just becauseof her eyes the way they glow and her bodys fantastic but i cared for as a friend before i liked her that way really if you ever her bruno mars sngs just the way youare tats me to her ok and i get the **** end of a stick