Most of these "physc" docs are just experimenting.
My bro wound up in jail for erratic behavior. He's screwed up for life.
A lot of the time the doctors just don’t know. They feel a need to do “something” to help a patient, but may go through several medications to find the “right” one. Sometimes the answer was not necessarily medication in the first place. But there are now a couple of generations of narcissistic little sociopaths out there due to Godless society and not so good parenting..
That's why its still called "Practicing Medicine".