Dear Welcome to HCM We understand your concerns I went through your details. First of all you should understand masturbation is healthy. Masturbation is a normal and natural practice. At adolescent period, male and female masturbate almost every day. Then, when they have many other things to do like education and sports, the frequency reduces to three or four times week. These are normal across the globe and nothing wrong or unhealthy. If practiced in excess, that is beyond one per day, the only impact your body has is, you get tired. That is all. But wrong knowledge about masturbation and this tiredness could cause psychological problems like obsession or anxiety. For your present premature ejaculation and urinary incontinence (I strongly suspect these are psychological), I suggest you to consult a psychologist or sexologist. Please do not worry. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible. Hope this answers your query. Further clarifications are welcome. Good luck. Take care.