I don't have my PhD yet, so that's a bridge that won't need to be crossed for another 4 years (optimistically)

He has referred to me using my first name. I think even if I had my PhD it would be different though. In the context of therapy, I am talking to him about my personal issues, not as a scientist/academic, whereas he is "performing" the role associated with his PhD. The whole point of therapy is kind of that I'm open and vulnerable and he is a psychologist acting as a psychologist.

I think mentally referring to him as "Dr. [Last Name]" probably makes things easier for me, because I need boundaries and to be able to trust that he knows what he's doing and can handle what I tell him. I guess it's kind of the same principle as self disclosure... I'm glad he doesn't do much of it because I need to see him first and foremost as a professional psychologist. The more he humanized himself, the more doubts I would have about telling him things and trusting him to not judge me and to be able to handle it.