Values as your career north star
At the risk of sounding corny, as a grizzled (but experienced) old dude, I can tell you with great confidence that your values – what you believe way down deep – is the best thing to help you navigate your career choices. Over the long run it’s what’ll make you successful.
Definitions of success may vary wildly and it’s easier said than done, but if you can consistently align your values with your work, you’re already mostly there.