It’s funny, now that you mentioned it I remembered I did keep a journal like that - in high school, long time ago. It was a very private, well hidden, handwritten journal where I mostly wrote down my dreams, and tried to analyze them. I also described my interactions with friends, girls, parents, my insecurities, plans, etc. Several hundred pages over a couple of years. Even though this journal is valuable to me, perhaps as an archive, I’ve never felt even a slightest desire to open it.