AAS is not the answer for skinny guys who don't want to pay their dues in the gym and diet properly. Man I can't even stress enough how much it scares me when I hear an 18 year old who weighs about a buck nothin talking about how dedicated he is to his diet and training and hasnb't got the size to back it up! Bottom line is you are too young to juice, and even if you were 25 and still weighed what you do I'd still give you the same answer! Read the diet and workout forums to get some ideas on how to spark some new growth, please.