i would honestly say as i have cousins that are young and they wanna get big bad as hell. They are around 13 and 16. well the 16y old plays soph football and wants to grow up like now. For him i say the same thing eat workout and sleep and wait till ur dick doesn't work anymore and then ur ready. the point being som people just don't need it and some do. You have to see what you can personally do first before you fuck with ur hormones...