Hello my dear friend I share your concern, you need not to worry, We are there to help you out Excessive masturbation at an early age is a matter of concern It affects your psychological development and may cause weakness and poor health after excess masturbation. In my opinion you should consult a psychologist for counselling and behavioural therapy if you can t control it on your own So concentrate on your studies Please don t waste your time thinking and doing about these things You should take good nutritious food to restore your health Exercise regularly Stay cheerful and happy Thanks for your question please feel free to ask for more assistance,I will be happy to help you Best wishes