My best advise would be get blood work and pct hard as u can and see if u can get back to normal multiple blood work sessions over periods of time. At 21 u don't need to worry about this Bullshit u havnt even started your life.
U r a goddamn baby. See if u can enjoy to train before u become a slave to these drugs. U will never be pro or satisfied with your results. Like all of us. In 10 years from now u will become less worried about this. But to be normal u will need it. Enjoy.your slavery if you continue