Originally Posted by ColonelSpecial

Well, maybe take some time off from school and work full time. I know some people might say that this is terrible advice but it has worked for me. I found a job that I love with the opportunity for advancement. If someone would have told me at eighteen that I would not finish college in four years, I would have argued with them but they would have been right. I know I will go back to school at some point but right now I have no idea what I want to study and won't give $5000 a year to piddle around.
I do believe that college should be an option for everyone but for some people it just doesn't fit. If you can't see yourself stopping college altogether, look at going to a trade/technical school to get education in a specific field. Don't beat yourself up too badly, just do what feels right for you. Trying to go to college to appease someone else is just a waste of money.
As for improving yourself, if you are already in a field you like/love, ask your supervisor what you can do to get to the next level. If you aren't in a field you love yet, look around in books, interview people, shadow someone who is working in the field you want to be in. Also, find something other than work to do. Crafts, reading, sports, theater, community enrichment, charities, etc can make the time off from work fun.
Good luck.