What are my chances with this girl (I'm in tears) help me?

I really think you need to move on. I don't want sound Rude or Mean or anything but these Signs are clearly showing she isn't into you. Stop doing these things for her and making yourself look like a Fool. She's only Using you. Move on and find somone else who will reply to your texts and make you feel better. Stop pressurising your Life and feeling so upset, because she's the one who's causing it and you need to understand that. Hope it Helps. :)