I am a 25 year old male and I am having a small penis of 4. Inches when fully erected and small testis about 1/2 inches as compared to others and less facial hairs and body hairs but my father and my grand father didn't have this problem and am having serious mental problem with this and want my genitals to be on normal size and I always feel less powerful then that of guys of my age I have observed this while playing, running and physical works, please give me some genuine advice how to solve this problem and as I am going to get married I am thinking that how my love life is going to be with my wife? would I will be able to satisfy her sexualy or not and what will be my future with this size of genital?