I can't work with my hand!! Is hand shivering caused from ma

i started masturbating since i was 12 years old, and i masturbated a lot since i know how to masturbate, i am now 25, i can't use my hand focus to do the small works, and it will shiver more than the normal people, it's not a nervous, for example, to check the contact or continuity of small circuit on a PCB board, doing the soldering process, and whatever works that need to use the Microscope. My friends told me it is caused by masturbating. i feel so worry about this, because in future i still need to use my hand to work in such field.

Masturbation also causing me forgetful? Is the brains works slower than someone who didnt masturbate? is masturbation causing heart painful? Is masturbating causing weak metabolism and staminer?

I wish someone who know the exact answers can tell me the solutions. If you have any ideas to solve this problem, i will be very thankful to you. i wish to have feedback in short time.

i am worrying whether it is the problem of my own health or caused by masturbation?