That's the most fundamental question: why life matters, and how do you use the infinitesimal small amount of time you have in this universe.

Of course only you can answer the question, but something that helped me in my own introspection was Clayton Christensen's book "How to measure your life" [1].

Also, for those in the mid-twenties and unsure about career, family, relationships and body/mind, I highly recommend "The Defining Decade: Why Your Twenties Matter" [2]. It may not be relevant for you anymore (I read in my almost forties), but I wish I had read two decades earlier. Here's a short summary I wrote on Quora [3].

Good luck on your journey!

[1] https://www.amazon.com/How-Will-Measure-Your-Life/dp/0062102...

[2] https://www.amazon.com/Defining-Decade-Your-Twenties-Matter/...

[3] https://qr.ae/TWrUXi