YoungJohn,
Studies suggest that certain parts of the brain that are involved with judgement don't fully develop until the mid-20's.
It is difficult to take an objective personal inventory at any age, but even more so at yours.
My read is that you've got some underlying issues that need work. The key is to find competent & caring professionals to help you on your journey.
It may be a good idea to take a hiatus from school (I regret that I didn't and consequently didn't get much out of the experience -- what a waste) Your college counselor can help you with that decision.
Make an appointment with a psychiatrist or other pro to try to understand what is propelling you in the directions that you don't wish to go. Treat the underlying depression. Take time to heal and grow and you will get tons more out of the college experience - and from life in general.
Good luck!
Buzz