you can easily learn all those things you listed if you worked hard for 8 months. but you're right, you're not going to be as experienced as someone else who has done it longer.
all i was getting at, is the fact that if he does steroids at 19, hes going to harm his body regardless of his training experience. if someone took steroids at an older age with 8 months of training, and they had a proper PCT, cycle supports, a decent base, and made the PERSONAL decision of starting steroids, they would do themselves much less, if any hard then someone who wanted to do steroids at 19 years old training for 4 years.
im not trying to argue with you, to each their own dude, agree to dis-agree.