I remember being taken to a psychologist as a high schooler and being able to diagnose the doctor. I thought it was so absurd that someone so unfixed was trying to fix other people.
Ironically I tried to fix people for a long time while I was unfixed.
But yeah, when someone has done the work and gets to a certain level, you can kinda just tell that they know what they are taking about, and it’s surprisingly rare, although I see it with some really amazing artists