Everyone's different, but as a programmer, I'd like more explaination of my psychiatrist's thought process on why they choose particular diagnosis and the medic

Everyone's different, but as a programmer, I'd like more explaination of my psychiatrist's thought process on why they choose particular diagnosis and the medications they use. And preferably a decent bit of pharmacology and statistics of expected outcomes (especially when I ask). Obviously it's a complicated profession. The medication changes your brain and often only has moderate success. Sometimes the medications can put you into a bad mood (and who do we blame? Probably the doctor). Diagnosis are partially based on subjective information. I was ruined myself by a psychiatrist that over prescribed benzos and later tried to use her authority to sell 'multilevel marketing' goods and services. It's hard to blindly trust someone based on their degree after that.