Avoid seeing porn .Do yoga .don't remain alone.Meditate.If not better consult sexologist.

for masterbation: You must understand that excess of everything is bad. Same is true with masturbation. Control masturbition. Dont do more than a once in a week otherwise it may cause some weakness. You may take cap. Shilajit & tab. Chandraprabha bhati. One tab. Each morning & evening & also take dhatu paushtik churan one spoon morning & evening. All 3 with hot milk for 3-4 months.

No medicine can control it. You have to control it yourself. Do meditation daily. Avoid watching porn and try to make yourself busy