Talk to Urologist on Masturbation

I can masturbate only after two days interval and only one ejaculation. I'm virgin, I apply mustard oil while masturbating, After this my penis becomes small, I feel intense thirst. I feel friends or people say they can masturbate daily with three+ ejaculations. I do proper exercise running lost 20 kg in last 1.5 yrs. Current body weight is 75kg.