Speaking from experience... (Score 0)

Sure, it's entirely possible. However, you have to start from the ground up as soon as possible after high school. You'll be doing almost 100% grunt work that any trained monkey can do. Stuff that I personally was doing when I was like thirteen, and I started getting into computers real hardcore fairly late. Also, while you'll find you probably know a hell of a lot more than people who graduated from college, those people will probably get paid more. Your very best bet would be to get some kind of low-level IT job while going to school. Experience is great, formal education is great, but both combined are excellent.