AntGullo, alc is right on this one...but we can offer you some nice supp alternatives to help you achieve those goals while your natty levels are still amped up.
You CAN grow naturally at your age, and quickly at that...don't think you need to resort to AAS just yet. Spend some time on the forums, absorb the diet and training sections.
Trust me, you'll be glad you waited. Winstrol only could be pretty harsh on your joints and hairline at such a young age.
Shoot me a PM anytime.