MaGilicuti said:i'll go first.
not taking school seriously as a teenager and not finishing college. it will probably hurt me more as i grow older.
I was in your situation bor. I decided to go back to school part time at community college in 1999 then got accepted to big state univ and decided to quit the job to go there full time while living off federal financial aid (and good parents). finished with a BBA and a Masters so really made it worth my while. Best decision i ever made. If you got nothing holding you back like family and debt that anchors you down then you can do it fairly easily. Government loves people to go to school and will give you the best terms on loans ever.