Wow! Some very young "cyclists" here! I started at 19...I'm 40 now. I started competing natural in the teen BB comps at 16, then started AS at 19. I Don't regret it at all. I've gotten more sides the last 2 years than in all my previous years...and thats because I do HUGE cycles nowadays! Mainly more body hair & acne than before. I don't think you need AS before 18 or 19. Its better to try and do it natural as long as you can, especially while you are young. If you MUST take it before then, just do very small cycles like Dbol only or one shot of test per week. Believe me, just doing those small doses will give you tremendous progress. But I was able to make decent progress with just weight gainers, protein powders, etc....and this was back in the early '80's! Nowadays, there's creatine, andro, and lots of other over-the-counter stuff. Even at 19, I only did small cycles back then, and for several years, too. Only the last 2-3 years have I done the much bigger cycles. Good luck, young guys! You are the future of our sport! Get MASSIVE, but be safe and consider your health, too!