Hey Guru! We become of our experiences, yes? Sooo, can't write the book unless there's something to go by to write about, right? Don't most write their story in the ol' journal 'after' day is done...when one has had time to ponder & wonder of their events?
btw...You may have a 'shopping list' prepared in advance...That just makes good sense.
Exactly. You make your life as you go.