How can i become the bodybuilder?

A boy who is 16 years old who watches youtube all night about bodybuilders should never try what they do regardless. You should only try to maintain your current weight with running and weight lifting. Your body has not matured yet and thus cannot reach your maximum potential as far as height weight and totally body maturity. The guys you see on TV are frauds and total bullshit liars. There on huge amounts of steroids which are totally illegal. Go visit a personal trainer.