You're what 19? 20? Just give it time - I'm nothing like I was in college, much less early in college. I really wouldn't worry about your future so much as your present.
Hang out with chicks that can take a joke. They are out there.
The good thing about college is that every year there's a new crop of people there - freshmen and transfers.
Maybe your sarcastic humor isn't a problem at all, but a good thing that will serve you well down the road.
You're in college, why would you want a good relationship with women.
Anyway, to actually address your question, try to turn a little of that sarcasm into humor and watch the bitches roll in!