Would it be possible to find another doc?
I would not see a doc who wasn't engaging in a discussion with me about my meds. When doing med changes it feels very much like a collaborative process. He may have some idea of what he thinks will be best, I may have some opinions, we discuss them, I express preferences that inform his recommendations, and when I walk out it's with a prescription for what we agreed to try.

I do have more background knowledge about psych meds and brain stuff than most people, but even when I was 13 and seeing my first psychiatrist and knew absolutely nothing about any of this she still made me feel included in the process and like my opinions mattered rather than just telling me what to take.

It's your body and your brain. IMO you have every right to hear your doc's justification for decisions, including why he won't put you on Prozac, and if he's not at least taking your opinions and preferences into consideration then that's a problem.