question: Hi doctor, I am 26 years old bodybuilder, who weighs 220 lbs and 5.9 feet tall. I masturbate from the past 14 years, and recently I was doing it excessively, up to eight times a day. I never had sex before, and I am afraid of failing in my future relation due to this amount of masturbation. Sometimes, I have a weak erection, but when I stop for one or two days, it becomes stronger. I have some drops of urine come out after I finish urinating. I feel I will have a weak erection or premature ejaculation during sex. What do I have to do to avoid that? Do I have to stop masturbation completely? What test or examination can I do to evaluate my sexual performance before I have sex?