I think you are right. I think part of my frustration is that my family & friends keep trying to convince me that there is nothing really wrong with me that I can just decide to change. I get told to "just think positive", "forgive others & myself", "let go & let God." The implication is that if I did any of these things, I'd be fine. It's not like I'm ill or anything. In other words, my suffering is my own fault.

If I had cancer, I might still be told to think positive, but no one would be so ridiculous as to think that would cure the disease.

On the other hand, friends and family use the fact that I have a mental illness to invalidate my ideas. After all, what does the crazy person know, right?
But if I had cancer, well, I'd still have a mental illness.