Parents, adults help me understand.

I am not new to this rodeo. I am a seasoned parent of a teenager with epilepsy. Now that he is 18 and out in college, the stakes are different and so is my ability to help and understand. Apparently I don't know how to do either anymore as it is different than having him in our home creating a serene environment for healing and wellbeing. Long story short, he is in college, decided to stop taking his medication altogethe, staying up late etc. So it was just a matter of time. He had a seizure in school in front of the entire school it seems on his way to 7 a.m. Class. He had been in remission for four years! Now back to square one with the recovery process, adjustment to new doses of meds, side effects etc. While still doing or at least trying to do college work. Semester is over. He was briefly in the hospital after the seizure, missed two weeks of school, and couldn't catch up with work. Sighs.... He didn't show up to his finals because why bother, and the teachers and students were so traumatized and upset about the public viewing of a tonic clonic, they have basically dismissed him, with a teacher even saying that he was a danger to the lab. Don't even get me started with that. I hate this, I hate this! His gpa is now in the dumps. He is done, humiliated and defeated. His dreams shattered. Our dreams too. We are trying to get his classes dismissed due to medical (yes, he is enrolled with DS), but he seems not to care much about the whole thing and basically drop the ball. Help me understand. I get the rebellion thing and trying to fit in etc. but I need help in knowing how to help him. This is the real world and there is no hand holding and this is the type if reaction that people will get. I hope there is a lesson in this and that he learns on his own, but this is a very expensive experiment you see. I am thorn between just taking home and go to community college while he lives under our supervision (sensible choice but that doesn't help him become independent or develop the skills he needs), or give him a chance hoping he has learned from this and start fresh. He has decided on changing his major (from engineering to arts) which I think is best. Any thoughts? Please give it to me straight. I want to know. Yes, I realize that I am probably part of the problem but what is a mother to do? Thank you.