Hey would you look at that! I'm also 14! At first, learning this Ballade was way over my head and I thought I could not get this piece down in a thousand million years. But despite that, I took the repertoire to my teacher, and made myself to persist through the piece, never allowing myself to give up. Well, because of that, I have come close to mastering it in just 7 months! So moral of the story is, if you believe in yourself and have the passion, you can play anything anytime. I actually recommend you start now so that you can continue to polish the piece throughout your career.btw, I didn't play an etude or anything before to polish up technical skills, so it is just a matter of how much you are willing to put into this piece.I wish you the best of luck!
A few questions, before playing the ballade what pieces did you play and how did you manage the Coda.