pitching grips for 12 year old

Question
i am 12 years old and i am looking on how to throw a few pitches. i have an above average fastball and pin point accuracy.  how do u throw a slider, curve, and sinker

Answer
Hi NI:

at 12, you should be focused on your fastball mechanics and a change-up pitch. Slider, curve and sinker should be restricted to older pitchers .  Continue honing your skills as a fastball pitcher and accuracy, accuracy accuracy.

Here's a couple of websites that may help:

http://www.pitching.com/free-report/

http://www.ultimatepitching.com/index-merchant.html

Best of luck,

JohnMc