Yes, this is a problem for most men. When I became a Catholic and learned that masturbation is a mortal sin, I immediately stopped. It was a challenge. The body had become used to it, so I had to pray real hard to the holy spirit. I remember saying "Holy Spirit, I can’t do this alone. If you don’t help me with this thing, it’s not going to happen. Like any other addiction, cold turkey is the best way, but in this case, because of the gravity of the sin, it’s the only way. I breathed deeply, kept my hands at my sides and prayed fervently. In less than a minute the urge would pass. Day by day the episodes became shorter and my confidence rose. My mind also became trained. I would push carnal thoughts aside and pray to saint Michael to defend us in battle. I am now celibate with an “iron will” and receive great joy from knowing that this trial has passed from me. Thank you for asking this question.