At 18 your GH levels are still pretty high, you can certainly take advantage of that FREE GH roaming around in your body before spending serious coin on synthetic GH. Two months of training is not really enough time to throw in the towel with your natural efforts...Exercise will increase the amount of GH released as well...You didn't give your height to go along with your weight, but instead of discouraging you from taking GH or AAS for that matter, i will encourage you with my own personal journey with weight training. I began training at 18 as well, weighing 150lbs at a height of 6'1" (skinny) When i began training there wasn't even creatine available to me, the only supplements there were was branch chain amino acids and weider weight gainers, that required alot of ice cream and milk to get the calories

. I trained O'natural for 9 years and reached a body weight of 225lbs...how did i do this? EAT EAT EAT, and TRAIN TRAIN TRAIN...Please be patient and give the natural route a try first, you'll find that in the long run you'll be grateful you did, because now 15 years later my body weight never drops below 245lbs because of the base or core that i built when i trained O'natural...you've probably seen the guys who blow up and then shrivel away cycle after cycle? if that's what your looking for then that's a different issue all together? Just something to think about.