When I was single in college my friends and I used to play a game. We actually had a game going on how many times we could get shot down in one night!
It was just harmless fun but it certainly got us over the fear of talking to girls.
Think about it there's absolutely no way every girl in the world will shoot ya down. Say ya get shot down by 10, # 11 has a high chance of talking to ya.
One of my friends would go all night I think his highest was like 16 girls in one night and whats funny is he met his fiance that night as #17!
Think of it as having the *censored* to get out there and just talk to girls and be your self! It's a good thing to get shot down at least ya tried.