Suggest Treatment For Erectile Dysfunction And Premature Ejaculation

Hi Dr. I am Muhammed by name. I am 18 years old. But what i want ask is how to get rid of weak nerve . I am having psychology problem like my sensory nerve is weak or damaged cause i was over masturbating and now i could not have hard erection and premature ejaculation. but if i want to erect my nerves get pain its weird. can you help me?please