Am I losing my hair due to excessive masturbation?

Baldness is hereditary - to do with your genes. It is nothing to do with what you do (except shaving your head, of course). My brother starting going bald at about 20 years old but I have hair all over my head at 62 years old. It's just the luck of the draw. However it is now fashionable to have a completely bald head, so go for that whilst the fashion lasts. You can be trendier than all your classmates and no-one will be any the wiser.