Very rapid hair loss at 18, why?

Not even a chronic masturbation addiction could effect any sort of hormone levels or anything? Please help I am trying to figure out what caused me to start balding so fast at 18

Hair follicles have a biologic clock that kicks in Apoptosis (cell death) in those men who have the genes for balding. I have seen young men (not common) rapidly lose their hair and develop a Class 7 pattern by the time they were 20. Statistically, that is probably not you unless you take after a father who was one of those rare men when he was young. Frequent masturbation has nothing to do with hair loss