Dear sir I was in habit of masturbation from last 15 years to till date. I am 28 years. Will get married in next year. I am totally feeling weak. My weight is around 40 kg. Now in these days when I start masturbation the ejaculation take place within 3 to 5 minute. What shall I do. I already stop down this. I want to be longer in the sex. Please advise. Also feeling tired when try to do some hard work. I have also acidity problem can't digest milk products Please advise in this regards.