They're like every other person. Some you like, some you dislike. Some you trust, some you don't. You're not meant to trust everyone you meet. And if you don't trust or like you therapist, psychiatrist, or even doctors, find a new one. Or don't. It's okay to not want to see psych professionals. That is a choice.

ETA: I do trust my therapist almost completely. Same with my last therapist. It took me several psychiatrists to find one I like. I don't trust her completely, but enough to keep her as a psychiatrist. I've also had horrible experiences with psych professionals, but my need for them kept me searching until I found good ones.