15's a great age to start man, just don't let it stop you from developing your own personality. The things you learn are tools, they aren't things that you can swap in and out of your personality like your a lego creation, you becoming what you want is the most important thing, so figure that out now. Do you want to be the best, Do you want to just be good with girls, and be able to get the hottest, or Do you want to be able to fall in love with and have LTR with girls? (Not mutually exclusive
) Good luck man, hope you enjoy your stay, and don't hesitate to post and contribute