I'm not sure if I will ever be able to handle having a full-time job, at least any time soon. But, for me, just going to work part-time does wonders for my mental health! I like working, and wish I could work more.
When I had a breakdown last year, I applied for SSDI, but by the time I finally got a court date, I had improved mentally. It just seems like so much hassle. That's just me, though.