Get into college, stay focused and finish. Try your best to finish within 5 years. If you're worried about high school grades, you can always go to community college. After 60 hours of classes, your old GPA and SAT scores erase themselves. Apply as a transfer student to any school you want. Just be sure the classes you're taking at CC are worth something towards a university you're interested in.

Whatever you do ... DON'T FALL INTO THE RETAIL HOLE. No offense to anyone here, but that happened to me. I went to community college right after high school. I realized I DIDN'T have to go to class and started to put more effort into my crap mall job. I wasted 4 years making decent money, but working retarded hours. I got my ass back in gear and finished college by the age of 25. Unfortunately, at the age of 22, I transfered into a 4 year university with only 35 usable credits ... I had 60 in CC, but didn't really pay attention to what I was taking.