Therapist is more of an 'umbrella' term really, whereas Psychologists have more training/expertise generally. I think what might help best is to look for someone's credentials re experience in your field (i.e. your needs) and their area of specialty, practical and theoretical. IMO psychologists would have more field experience/training and might be preferable.

Still, I would advise to interview a bunch of them (both social workers & psychologists), either by phone or initial meeting & 'grill them' re your concerns & questions, how they propose to help and so on. This way, you can see their attitudes already and if not competent, knowledgeable or prejudiced, you can weed them out early on. This would hopefully avoid further heartache down the road.

I truly hope you finally find someone who'd stand by you and give you the support you need.