When nothing is working I would look at your treatment providers. That your pdoc won't give you something to help your insomnia seems odd. Are you on other meds? It sounds like you would benefit from an antidepressant.

Perhaps your therapist is not an effective one for you. I've been in therapy with a therapist who is excellent and it's a world of difference between that kind of therapeutic relationship and one in which the therapy is just...flat...like flat soda.