Between my father who was also a guidance counselor, looking back at my own pre retirement life, and a few nuggets of wisdom from Mike Roe, I would say
1 - You need a real job to pay bills, buy food, provide for you and your family. It isn't a quest for personal enlightenment, an everyday feeding of your soul that you'll quit as soon as you get bored. Hint: Going into debt to get a masters in puppetry arts will NOT give you a real job.
2 - Find one that pays the most and has the most economic value that is a combination of something you can do well / fits your skills, abilities, and personality, and something you can have an interest in doing.
3- Don't follow your passion to find a job. Find a job (see #2) and get passionate about it.
4 - It's a job. It can be fun at times, but at times not. It's a job.
5 - It will change, your company will go out of business, something will happen. You'll need to change jobs. See #2 above
6- Managing and maximizing your career, doing and bringing the best to your job; that is the rewarding part that you can be proud of - whatever the job is.
And for the potential professional pilots out there:
Flying can be a great job. It can also be a bad job for you. But it's a job, not a religion. You have to see how many years you have to work, and balance the cost of entry level low wages and low QOL vs what might happen after that. It might not be worth it. If it isn't, seems like the best choice is to revisit #2 above. If it is worth it, fantastic! Whatever way it turns out, you can "be happy and fulfilled in your career" either way.