I know exactly how you feel, i have been to 3 doctors and 3 different therapists and i have been diagnosed with soo many things it is not even funny. and it is very hard to fit everything into an hour session once every week, it is frustrating and annoying and it makes me want to rip my hair out sometimes--

My best advice to you is write down a list of the things you want to talk to your therapist about, and write notes about what you want to say about each thing, then when you are with your therapist breeze through it, give her the list to review so the next session, you can both cover more grounds and actually make progress. Also try to get medication for your BP2 and then with the therapy i think with time people will let the other diagnosis fade away.

Much love and luck