Sometimes I feel the same way. I never finished anything in my life until recently. But it was a six month business program not college. See even though I accomplished something that I was never able to do before, I still put a negative spin on it. Typical!
Don't feel you're alone though
I've seen some of your posts, and you definitely are an interesting person who has a lot to offer, so don't sell yourself short.
Good luck and keep your head up!