Are they not authorizing services? Or not as many as you would like? I'm not sure from your post what specific issues you're having with your insurance administrators.

I don't use insurance now. Life is much more pleasant when I leave insurance out of my therapy. But in the past, I have just played their game to get what I needed. No matter what was going on with me, I called it depression because depression is a prevalent and acceptable diagnosis. It got me in to see the therapist, and then the therapist knew how to take it from there.