I get along with my psychopath dad
How well do you get along with each other?
It's easy when you are emotionally hurt to be hurtful back.
If your dad is a psychopath then he should be under the care of a psychiatrist. You should get your father the mental health treatment he needs in order to manage his condition effectively.
My father hates shrinks, they are a waste of the taxpayer's money in his opinion.
Your dad is wrong here. Shrinks provide a vital service to those who are struggling mentally. Maybe you can enlist the help of family and friends to convince your dad.