Hmm, very Impressive!
I started when I was... I think 13,
Those were the days!
now I am 17, so no help here
Just come to these forums often and you will get better and better, and that is how you further your talent. Friends usual don't understand the appeal of 3D art, or they expect professional looking work right away.
So really, just keep at it, you are WAY ahead of the game!