Talk to Urologist on Skinny Body, Weakness And Cum Too Fast

Hi! My name is Umair and I am 25 years of age. For past 5 to 6 years I am masturbating daily but at that time I feel nothing in my body but with the passage of time I start feeling my body becomes skinny and whatever I eat not get mass on my body. But now I have control myself a lot as I masturbate now once or twice a month or sometime more than two. I want to stop this habbit permanently and want a good body getting some mass on my face and rest of the body. I have also problem of early discharge whenever I masturbate I discharge within three minutes. And I also feel my penis size small as it is 5'9'' . The size is ok or not? Please guide me in this that how I build my body and regain power and how I increase My timing and penis as well?