well im just starting out ive been playing for like a month and im developing really young although compared to u im a lot younger only 13
but i look around on the websites like these and they can help u alot and same with the videos one of them helped me alot
but still just practice alot
i practice every day for at least an hour
i'd reccommend cyberfret.com
its pretty nice
although i think playing piano for a couple years has helped me
so im new too good luck