No right or wrong answers, imo. Because there are many ways an individual can go about it depending on what's important to them. Anything you'd like to be a genius at, beneficial or not.
Just for fun, astronomy and astrology.
Professionally, I've always wanted to work with robotics.
I wanted to be an aircraft mechanic when I was a kid. That way I can have my own tool box and tool sets.
If fixing and building planes were my super power, Boeing would be offering me a lot of money right now that I would be able to use for all the B stuff that comes with living. 👀
Boeing needs people with actual knowledge of airplane design. Most of thise people have retired.