Your college almost certainly has a counselling service. Go to it. NOT because you're messed up, but because you have self-esteem issues that you're only now beginning to work through.
The bottom line is this: you're living in the past. You have this whole story and rationale for why you can't talk to girls and why you've never gotten laid and why you're such a loser, etc, etc, etc. But that's ALL the past talking. You're not looking into you future and seeing the wide open space that the future always is, always has been, and always will be. Instead you see more of the same--people reacting like they did before, you being ways you've been before, etc. But that's not the future at all! That's the past! It's over!
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