I am 26 year old male. I'm about to get married. My problem is I masturbate when my penis is not erect. That is when it's flaccid. I just rub my foreskin on something. I'm uncircumcised and have a longer than usual foreskin but I goes all the way backwards . My glans hurts when I touch it. I think it's because I haven't exposed it much. How will ever have intercourse. Please help