I loved drawing as a kid. It’s possible I learned a lot about focus and patience when creating something from my early time drawing. This was the initial “flow state”: spending hours drawing. My Aunt bought me a book called Chuck Amuck about Chuck Jones, one of the creators of Bugs Bunny which I still have and remember loving as a kid. Below is a 1991 video showing some of Chuck’s process.
And here is a fun drawing showing the evolution of Bugs Bunny over the years: