I am 21 years old boy. Since 3 years i am mastrubating. sometime even 3 times in a day. I used to feel proud of my cock but that was in the beginning. now i am having problems with my cock's size. it doesn't rise easily as i have to rub it hard and sometime without my will, sperm gets out !! I am very confused ...will I be ok now ?? is it because of mastrubation and if yes what is the solution?? Thank u.