I'm sorry to read this, and I can identify with your struggle. Seriously, I used to shut my office door at work and cry every day. I also agree with the advice that has been written above.
My issues were more anxiety related, and I had to try several different medications before I found what worked with tolerable side effects. What sucks is that I want to have kids, but don't want to risk hurting the baby by having to take antidepressants while pregnant. For obvious reasons it's hard to properly study the impact of SSRIs on fetuses. If your medication is not helping you, you may want to consider trying a different med or combination. Talk therapy was never very effective for me, however I found that mindfulness-based meditation was helpful.
Mindfulness (psychology) - Wikipedia, the free encyclopedia
I also sympathize with confusing/scaring/being angry at my husband when I was depressed. When someone has never experienced mental illness, it can be very hard for them to relate.
Anyway, I think it's fantastic you're trying a new program. For me, depression and anxiety fed off my routine, and breaking that routine seemed to "reset" my way of thinking. New school might be just what you need, and you should be proud you took the first step. From your post, you clearly have great fortitude. Be gentle with yourself if you can.