How do you perceive time? — Active years vs non-active years

Photo by Agê Barros on Unsplash

I had a honest conversation with one of my closest friends where we were randomly chatting about our time in our 20s till the time we realized that we are no longer young enough to call ourselves a young adult, but rather a “somebody” who should have figured out our lives.

What should we be EXACTLY doing at any point of time?