Just FYI- if you're in above average shape for your unit, you will be selected for PEDs drug testing which is random and goes with the typical drug UA. They do it all the time now. I would be aware since you said you want to get back on once you're done with basic. Honestly, it's a bad idea until you're well established in your unit and know your command staff. Then, you can determine if they'll test you or not. Because if they do and you piss hot, the consequences will reach much further than just your time in the military. Your discharge will literally say what you did and that can haunt you for a long time. You won't be eligible for any benefits or entitlements afterwards. You will be a pariah so just keep that in mind. Also, yes some guys are on PEDs but most of them are NCOs and officers so they know who might push for testing and who won't. Be mindful though, if anyone else knows, no matter who, they can use that you're on PEDs to screw you over at anytime. It's a huge risk that can cost everything.
-disabled army vet
Wish you the best!!