hello welcome to hcm i understand your problem u haveing a strong misconception about mastrubation it wont cause testicular cancer it does not cause memory problems visual problems actually as it relaxes your body u may feel like having no energy , poor memory , early sleeping ejaculation is a symphathetic activity so it can cause tremors , nervousness that too for a short time upto hours , since you are in such a distress it is better to decrease the frequency of mastrubation or to do just before u go to bed or you should take lot of milk , fruits like orange , banana , and nuts to rejuvanate your body with nutrients like citrate , zinc , calcium etc you can overcome from this habit by engaging yourself in other sport activities or going out with friends or changing the environment , avoiding those stimulents that make you think of it and most importantly avoid being alone .. hope it helps ..