17?? Lol bro.. Get you ass in the gym everyday absolutely killing it. Get yourself some bomb ass preworkout and big ol tub of protein and grind bro the only thing your going to do with trying to cycle that early is fuck with your natural hormones.. Do you want to have to shoot yourself in the ass with a needle once a week for the rest of your life because you wanted to do a steroid cycle and probably end up falling off the fitness life then you fucked up your body for the rest of your life for what to try and look better a little quicker. It's not worth it bro. Don't touch steroids till you train consistently for 3+ years and reach your natural limit.