A Girl Question? Im 17!?

Ok so theres a girl that i sort of like,(she has mive ***s, probably why), and im nervous to talk to her. I tried texting her last night and she said who is this so i said my name and she just said "O" Im not familiar what that lingo, so that probably means she hates me.then i told her what i was doing and she just said tru. Could you please help me because i want to ask her to prom and shes really hot. Thanks