Procrastination gets easier after retirement. I call myself temporally-challenged, because I cannot remember dates or appointments.  Calendars don't work for me, because I forget to look at them for days at a time. I am pretty sure this is a form of psychic blindness, but not sure whether it is organic or psychiatric in nature.

The automatic reminder services used by doctor's offices have been most helpful for me, because I am seldom very far from my cellphone.  I only need to remember to keep it charged.  I have a phone with a spare, replaceable battery, which helps with that, but most newer phones these days don't have one. The calendar/reminder system on the phone doesn't do the job for me, but I'm not sure why.  I never see the notifications until it's too late, even though I have tried tweaking the settings.  Also, I don't know how to keep old entries from filling up the phone memory.  It happened one time and it was very bad.  I had to factory-reset the phone to get it working again, and lost a lot of data.

https://getpocket.com/explore/item/how-to-beat-procrastination-backed-by-science