Thank you Kate for sharing your story. It was fascinating to how you benefited the flow without knowing.
I have a dear friend who also cannot stay on a career for long, I will show her your story (I think it would be inspiring for her).
In addition, I would like to recommend you a book called Payoff by MIT psychologist Dan Ariely. The book is about finding meaning and happiness in your job, regardless of what it is.
Again, thank you for sharing your story Kate. Keep in touch.