It`s never to late to learn
. I myself use Hanon and must say that it is one of the best finger training books you can have.
I am also 14, and have been playing for 5 years this December.
Feel free to e-mail me if you have any questions; I`d be glad to help any way I can.
Right now i`ll tell you that if you can do one Hanon excersize a week, you`ll be well on your way!