It must be real sexual torment for you, and that all because of your so called cock. Assuming your cock has no real purpose, and it only torments you, perhaps the best think you can do is to cut your cock off. Can you think of anything useful for your cock other than to pee while you stand?
While you're thinking, do five sessions of two hundred fast strokes, with small breaks between each session if needed. No cumming. If you're about to cum during a session, take a pause and do that session again.