...as a player?
My father used to hunt a lot, back in the 70s and 80s, and he kept a journal where he wrote about most of his accomplishments, including a safari for Buffaloes.
I do the same, got a black Moleskine (yes, Willie, it was a Hemingway reference) and have been documenting my gigs and the stuff that catch my eye along the road.
Since I’ve always wanted to “write a book” but never had a good idea of what to write about, this is close enough, I guess.