It takes me an hour or longer to cum!?!?

I masturbate a lot and I always orgasm 1 to 2 hours after I start even with porno... I can't orgasm with my bf no matter what he tries because of it so I just fake it %99 of the time and I'm left fustrated and turned on. I'm thinking about stopping masturbating for a while to see if I can regain some of my sensitivity. I was wondering if anyone goes through the same thing and if so do yall have any tips for me?