I’m no fan of porn for multiple reasons, but I strongly suspect the incidence of porn addiction is greatly exaggerated by a Puritanical sex-negative culture and the related “no-fap” movement.

If it’s not interfering with your life and happiness, it’s probably fine. If you think it’s too much, then that’s valid, but I don’t think anyone, not even a psychiatrist, could tell you with any certainty how much is too much. It depends on so many different things.