Dear Welcome to HCM We understand your concerns I went through your description. I suggest you not to worry much. Masturbation is not sin and it is natural. Even animals do masturbate. You will reduce the frequency when you have more engaging practices like studies and career. Night fall is also normal and it happens due to body need of discharging accumulated semen. Nothing to worry. As for your varicose veins on penis, you need to consult a physician to get it confirmed. In my opinion, it is not varicose veins but normal ones which you are confusing with varicose veins. You might need psychological counseling., I am more than happy to provide telephone psychological counseling through healthcaremagic. Contact me through customer care, www.healthcaremagic.com. Hope this answers your query. Available for further clarifications. Good luck.