formal education is highly overrated

I find myself conflicted with my ideas on higher education and if the benefits outweigh the sacrifices. On one hand, a degree can advance my career path. On the other hand, I'm completely clueless what I want to do with myself. Wasn't I supposed to come to this conclusion the instant I turned eighteen and bolted out of my parents house? Seven years later and I feel more in a fog than ever. I quit my job and am down to my last few bucks, I'm taking snore worthy "core classes" for the second time (art school really screwed me), and I'm not finding happiness or even making sense of what I'm doing and what I'm doing it for. I have The Clash's hit on repeat in my mind, should I stay or should I go?

Do life coaches really work? I'd probably stop going before any progress could be made anyways, that's just my style these days.