I've been on DA since 2006 and this I believe is my 3rd account.
Majority of my artistic skills are self-taught. I've only ever done art in elementary and high school. Had no professional training and don't ever plan to. Personally I believe that school just teaches you someone elses way of doing things. It might get you a job faster all because of a piece of paper you get that says you finished some fancy pants school. But I believe the true reward is when you learn on your own, when you make mistakes and grow in ways that you never can in school. That's when you find your own style and not copy someone elses.
Knowledge is power!