I did this on retirement around age 55 so I had a bigger database of experience in my starting sample but with a widely varied work experience you should be able to systematically dig what drives engagement.
Note, this isn't great for a 'and now for something completely different' crisis where some excluded aspect of your self wants center stage and is fading the usual things to gray.
When I retired I went through a process of reverse engineering my life...basically creating a dialog between the factors that I thought contributed to life satisfaction and how I rated different jobs, hobbies, projects, etc that I had been involved in. The objective was to see if my story correlated. (Hint, it didn't.) Once I had a list of more-or-less verified factors, now verified, I then listed all things I imagined that I might do next and evaluated them on those criteria. I picked the three that ranked the best and started exploring. 5 years in, this seems to have worked well.
I did this on retirement around age 55 so I had a bigger database of experience in my starting sample but with a widely varied work experience you should be able to systematically dig what drives engagement.
Note, this isn't great for a 'and now for something completely different' crisis where some excluded aspect of your self wants center stage and is fading the usual things to gray.