Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. Masturbation is not unnatural. It is natural and even animals masturbate. Nowhere it is proved that it is unhealthy if done in moderation. Youngsters do masturbate twice or thrice daily. Don t worry. Masturbation cannot harm your health if done once per day. If you do not masturbate you will have night fall because body produce semen when you are sexualy aroused and body should throw it out. Eat health and exercise and stop being anxious about masturbation habit and your health. Concentrate on your studies and career. For sexological and psychological counseling and for different psychotherapy treatments visit http://psychocure.webs.com/ Hope this answers your query. Available for further clarifications. Good luck.