I was kicked out in my last year
of Uni, because I failed two courses. Regardless
of my diagnosis, I was the only one to blame. I wasn't serious enough, I partied too much, and couldn't focus. Do I blame the school at all? No, I did it, I owned it, and I moved on.
Maybe once you've dealt with your addiction and are ready to deal with your illness, you can go back. Especially because you were taking psych courses, not really the most prudent program considering where you are at.