Hello Dr. I Am 29 Years Old And My Weight

Hello Dr. I am 29 years old and my weight is 115kgs and I masturbate once in a week. But I feel sexual weakness like ED and small penis size and low amount of sperm. If I stop masturbate for 15days I will get nightfall. Dr. I am getting married after 5 months. So I need you to suggest me any medicine for my problem and for how many days I take that medicine.