Dude. Do you honestly think anyone would condone the use of PEDs to someone only training for a year. Also 20 yrs old. That may be a little early as your still developing brother. Your natural test should be good! Go hit the gym as hard as you can for about 6 or 7 more years. Remember, this is a "Marathon not a Sprint!!"
Bro, like I tell my son who is 18yo, 165 at maybe 10% body fat if that and playing college ball against guys twice his size... eat, lift and tuck your pussy lips and quit looking for shit to be handed to you with ease. If you touch gear now without a proper base frame you'll end up looking like total shit regardless.
Aas isnt the answer for you man. You need to put more time into building your foundation. 1 year is nothing. You're just getting your feet wet. Focus 110% on training and nutrition. Learn your body. That is how gains are made.
dude like everyone else said your not ready don't end up like me... I was messing with prohormones when I was around your age now I'm 27 with the testosterone level of a 70 year old man cause I dident know any better.
I might have to be on TRT FOR the REST OF MY LIFE. cause the choices I made when I was your age.. think about it brother eat and train your ass off for another 5-6 years then descide