Truly, you can do anything you want.
Whether or not it's a good idea can be another story.
There is no defined time where aas use is acceptable or not. That story is different for everyone and depends on a multitude of factors. No one can tell you when or off it is the right time or what it should look like.
The only advice I can offer is this.... whatever you decide. Be informed. Do a lot of research and try to truly understand these five things...if nothing else....
1) Choosing to use aas WILL change your life. Sometimes for the good, sometimes for the not so good. Regardless. Aas use comes with permanent health impacts. Choices....good, bad or indifferent ALWAYS come with consequences. Not all doom and gloom here. But use changes everything.
2) What you think is important today will change significantly as you progress and age. This to me, is the one that everyone thinks they understand but rarely do. Always give it thought and constant consideration. Hindsight is always 20/20.
3) The choice to use aas WILL impact your health, especially over time. You can mitigate negative impacts if you are both informed and conservative in your choices and approach as time goes on. However, there are no guarantees. Some can use forever without much consequence, some aren't so lucky....there are no concrete ways to determine your path proactively. Monitoring health and being honest with yourself is paramount. You WILL find yourself at some point... or points trying to explain away the obvious to stay on a little longer or run a little higher or push a little further. Why? Because they work and are awesome. Pushing, especially here and there, isn't a death sentence or anything necessarily, however the more it happens, the more other things can start to happen....and sometimes by the time they are realized, the damage has been done.
4) Risk vs reward is a real thing to always keep in mind. That too, changes significantly over time.
5) Just because you dont "feel" negative sides.....doesn't mean you aren't experiencing them. Monitor your health. BP, Bloods, Sugars etc.