i think the most important thing is that i start being consisten and establish a decent routine, continute with my good diet, and add a few supplements i should grow since im a teen and my hormones are raging at this point.
i think you know what you need to do but you'll need patience, develop a good routine and settle in, forget about the big goal and set small easy to achieve goals along the way, the more you try to get to where you want to be in the shortest amount of time, the more the chance it will all end in faliure.
be patient, learn good form, eat well but not obcessively, and get good rest, sleep at least 8 hours if you can.
be positive and enjoy yourself, don't see working out as a chore but don't stress if for some reason you miss a workout and please don't live in a gym, quality over quantity.
3 - 4 sessions a week max, at 17 you really don't need any supps to be honest, once your lifting form gets good and you feel tuned in then possibly look into getting some bulk creatine from nutraplanet, don't worry about the fancy labelled stuff, it's a waste of money.
at 17 you need to develop good habits and the rest will follow, quality muscle gains are slow but honest but the more honest the training the better the gains will stay with you and the rest follows.
patience, patience & more patience and please don't use designer gear like s drol, you're way too young and it could hurt you badly.
if anyone has anything to add, please do.