Thanks, for a while there I thought it was going towards the drop out route, but your second paragraph really made sense. I guess I'm in such a rush to jump in seeing all these young guys working at startups, i'm afraid i'll miss the boat and next thing I know I'm too old and washed up for the hip young startup guys.
Aside from learning academically, you should also make good friends in college. Much of business and life is about who you know, and right now you are in a place where everyone is interested in meeting new people and learning. Make good use of that time.
I started my startup when I was 31, and I'm doing fine, so really there is no rush... (unless you are working on the next big thing with your roommates and all of you decide to drop out.)