Help me out guys and gals

Hi im wondering if you can help me here on this forum???

o.k at the moment i am in secondary school and there is this girl that is fine as anything and ive tried countless times asking her out and texting her and stuff. I first met her on a 3 day trip from school to Germany and i had to sit next to her as i was last on board.
My life has turned into a complete wreck and i dont know what to do????????
can you help me. I would go to extreme measures to go out with her . She knows it and she still aint caring about it:( 🙁 🙁 🙁 🙁 🙁 🙁