Im 21 years old youn boy, wt 70 kg and height 5.7. I masturbate in excess so I have a problem of weak erections. Then I take ayurvedic medicine I eat them for three months btw the course I did sex once that was awesome. But yesterday I did sex, at first time it was good, but second tym erection was loose and man bi ni kr ra tha sex krne ka. And ajkl mere interest bi ni raha sex m itna jitna pehle tha what going on. Why im loosing interest in sex. I am too young.