I also wrote a retro diary 15 years ago for every year of my life that I thought might be of interest to my future descendants. Boring though it may be, I quite enjoyed doing it and knocked up 120,000 words covering 35 years
My recall memory from 30-40 years ago is surprisingly good. So much so, my mates ask me to be recall things that happened to THEM at school in the 80s/90s as they are very sketchy about the details.
But since having COVID, my short term memory is shot. It’s a long COVID symptom apparently...