dude your only 22 your testosterone is naturally jacked, if you do steroids you could permanently screw that up. then you'll be 30 years old with low test and tied to a needle for the rest of your life.
diet is 80 percent of building your body, training and supplementation the other 20 percent. eat two more meals and buy some weightgainer to take before bed with spoonfulls of peanut butter. i promise you can beat your metabolism if you eat more. besides if your not eating enough when you stop taking anabolics you will loose everything you gain.
not trying to be a dick kid i just dont want you to mess yourself up.
if you're gonna take something regardless research ostarine, it's mild, it works, and the supression on it will be less than any other anabolic.