Sir I am 21 years old, when I was 15 or 16 I had some what larger penis, since I had the practice of masturbation since 13. From the age of 13 to 18 I at least masturbate 2 or 3 times to 6times a day due to that after the age of 16 my penis size gradually decreased, now it got decreased more than 2 inches now its size is 5 inches when erected and 2 inches when flaccid, and the ejaculation time also decreased a lot when I am 16 I had the endurance upto 20 min now only 2 to 3 min, I am unmarried, I don't know what to do still I can not control masturbation, now also I am doing at least more than 4 times a week pls help me. And I do not have any bad habits like alcohol or cigarette or any other and also I never had any intercourse. My weight is 83 and my height is 5 feet 6 inches.