This logic can also apply to hobby projects and interests. "There are amazing artists or software programmers building world class stuff, what can I add?" is a common enough refrain I've encountered here on HN.

It's not just about the end results, it's about being the person or seeking the experiences you want to have.

Maybe you want to be the person who builds companies. Go build one. Maybe you want to make 3d designs or game engines or hack on circuits. Buy the book and get started. You're not likely to be the next maestro, no one is. But you do bring your unique identity and a fresh perspective which those before did not have.

Even if you don't build a world changing something or other at least you did the things you wanted to do and were the person you wanted to be. Even getting close to that is a life well lived, and lucky and privileged in many eyes.