He's a smart kid He's an adult. He needs to behave like one. I failed out of college as a 19/20 year old. I took some time to grow up , decide what I wanted to do then went back and finished (also got an ADHD diagnosis, decided not to take medication, and made better study habits). At some point, he has to grow up.

my schooling has ended without my degree and I'm most likely not going to be able to say in my field (something I've wanted to do since I was very little).

..Why is this exactly? Why can't you stay and finish school and look out for yourself? Because clearly your husband isn't looking out for anyone, himself included.

If he transfered credit and you never went to a graduation ceremony or saw a diploma, he doesn't have a degree.

Also, letting ADHD be an excuse is ridiculous. It makes studying more difficult but not impossible. As an almost 30year old grown ass adult man, he should be able to figure out a study plan that works for him or quit taking on student loan debt for a program he has no intention of attempting to complete.