New doctor, without delay.
An elevated PSA can have causes other than prostate cancer, so first you need an MRI. Bypass the Joker and self refer to a urologist. You'll need a copy of your lab report. If he performed a digital exam, you can request a copy of his notes through his office staff.
If you tell us your city, someone here will know a good urologist in your area.

Many years ago there was speculative association about increased sex reducing prostate risk. That myth has long been dispelled.
I'm sure the doctor thought he was so funny. Don't give him another seething thought.

Stay with us here on connect, though because there is a lot of valuable experience here.