Some people are dentists because their parents were, or they were told it was lucrative, or their friends were, or they couldn’t become doctors. And some people are dentists because they love the career and the calling to help people.
Which of them do you want to put a high speed drill in your mouth?
Find a career that you’re passionate about and are great at (or can become great at). Use your own metrics for fulfillment, not someone else’s.