Success doesn't always equate to happiness. As we increasingly bring work home, sense checking your personal job satisfaction criteria can improve your perception of work, culture and possibilities.
Many of us face decisions on how to best spend our time. It is not always as drastic as a change of career or job, but still very important with regards to how we feel and how much we learn, or other aspects of our professional lives.
https://knowledge.insead.edu/blog/insead-blog/three-factors-for-happiness-at-work-9001