for example, one day I was in a course and I felt miserable even before I was there. then suddenly it dawned on me that this is my aversion to the whole thing. it's not rational but irrational. once I knew what was going on the bad feeling went away quite quickly when as before I'd just suffer without end.
before I was helpless, now when a negative feeling comes I try to guess what it could mean and often I find the answer quite quickly. once the source is identified, the bad feeling dissolves and I'm back to normal.
and another important factor was that I started trying to live by the golden rule: "do unto others as you would have them do to you". the problem was that not to do this often caused a lot of the confusion in my life and my feelings. I don't think it would have been possible to figure it out while I was in this chaos caused by not following the golden rule.
oh yeah, and the last thing that helped a lot is that I stopped going to therapists and took on responsibility, not relying on what others say about how I feel.