I've only had 2 therapists. My first therapist was an idiot, but the second one (my current one) is awesome.

Here's why my first therapist sucked:
When I first came in, I told her I was depressed and I explained my symptoms. I also mentioned that I tend to become depressed from time to time. (I didn't know I was BP yet.) She said, "No, you don't seem depressed to me. You seem fine. I don't think you've ever experienced depression if this is what you think depression is like."

Then when I had another appointment with her, I was actually in a mixed state. I told her I was depressed but full of energy. (I also didn't know I was BP yet.) She said, "No, that's pretty normal. Sometimes I get 3-4 hours of sleep. This happens as you get older and, unfortunately, you have to accept it. You should do a sleep study."

Later that week, I saw my pdoc for the first time, and he was like, "No, you're BP and you're currently in a mixed state." Never saw my therapist again after that.