I keep a minimal form of journal for all life events. I briefly describe a thing I did or a thing that happened, and how much energy it took me to go through it on a 0 to 4 scale, where 0 is breathing and 4 is major life crisis. If I think there was a lesson I write the lesson too.

This creates a feedback loop for stress reduction where I aim to mitigate both the likelihood of having a crisis and train a calm response by learning how to deal with smaller stuff so that the day is full of 1's. I chuck it all in a text file once a day, and return to it because my todo is also in there so I always have a backlog. I don't distinguish between work and hone tasks although I might if I were going in to an office.

Long form diaries I don't really engage with because they'd sap relatively more time - I would get caught in trying to make it a storytelling experience.