Will something ever happen?

Long Story short; This guy tried talking to me, I denied him. I highly regret it, because afterwards I began to have a super major crush on this guy. I would see him constantly where we would just see eachother and just stare. One day I was in my school book store, he seen me and turned back to talk to me but a clerk ended up tending to me. And it was to late so he turned back, by the time i looked he had already exit. Which left me so upset, that i had to bump into the clerk. So i finally decided next time i see him, I'll approach him myself and give him my number. The day comes, i spot him walking of campus but he was to far in front of me and already exit to give him my number . And this was the last day of school :-(.... Then i found him on FB, i sent a request he never accepted it but i only gave it a couple of hours before i cancelled the request. I guest i should have waited since ppl check fb at diff. times. Anyways long story shorter, I can't stop thinking about him! I passed up the perfect opp. when he approached me the first time. Then when i finally had my chances it was like the universe was not agreeing and everything was due to imperfect timing. GOD I FEEL SOOO STUPID. everytime i think about it, i want to slap myself for not taking the chance... LESSON LEARNED..WHAT DO I DO?