Hey Killer, I'm gonna say this nicely and before anybody rips you a new one... First thing you should worry about is using gear is going to close your growth plates that naturally wouldn't finish closing until about the age of 23-24... 18 is WAYYYYY to young young to even think about gear... There are several side effects, especially being so young isn't worth all the risk and living with them the rest of your life... I'm only 24 about to turn 25 but when I was 18 I made so many mistakes I look back on now and just think "damn, I wish I would have listened"... you are only 18, you do not know more then a Doctor who went to med school and knows this stuff, the doctor has very good reasons for not prescribing you and test right now at this point in your life... just by your cycle I can tell you haven't done even close to enough research... my advice to you is if you are going to go through with it anyways try some all natural test booster, read about them.. do your research and know what you are doing to your body, know about the side effects, and the side effects of the side effects... then work out for 5 more years, then if you still feel like you need juice then read more and do your research more.. 18 is way to young and if the Doc thought you needed it and the perks out weighed the risk, he would have prescribed it to you