Live it, don't waste too much effort on the freshman or sophomore years. Get outgoing, make good connections. Join something, but don't let goddamn clubs turn you into their money making slave either...
Get a car when you can, and if dual enrollment is available take it ASAP. Make sure you get to leave early with the dual enrollment.
Know the school, find loopholes.
Be very nice to the staff(security, lunchladies, teachers, office workers, counselors), try to be in real good terms, even friends with them. You don't know how much one of them can save your ass In a bad moment. Be noticed, be polite, and professional to them Believe me, they will help you out much more than the secluded, shy, or rude, individual.