I did the same thing, I got into partying and drugs and failed out of school. Ended up at CC for a bit. I just did liberal arts, coasted, got my credits, worked and matured a bit and finished up at a different university. I overall enjoyed my time there. Just being 19-20 was an interesting time in general. I liked that I could just take classes that seemed interesting. I took things like bowling, tv production, hebrew lol
Actually, I might have been able to go back to a university under probation (is that the right term?) but I was too college-ignorant to know that.
Still, two years at a community college is in fact what I think I really needed at the time. Knocked out the first couple of years of prerequisites and for very little cash (my minimum wage job working at a pizza place paid for college + apartment ... this was 1984, FWIW). I even got Calc 1 and II behind me.
Fond memories.