I went to a therapist for awhile at the suggestion of my psych doc, but mostly because he thought I have a social anxiety disorder in addition to my bipolar. I told him I don't think I have social anxiey, I just hate crowds (lol). I don't think they necessarily go together. Anyway, I think therapy is important for me to sort out my feelings and prioritize which dysfunctional part of me to work on the most. I'm not going to therapy right now because of health insurance issues, but I'm geetting back into a spirituality class which is sort of therapy for me.
I've been seeing a therapist ever since I was diagnosed. I've learned quite a lot from her. It has helped me tremendously! I still see her. Right now I am seeing her weekly, since I am going through some stressful times.
I would suggest that you give it a try.