Your memeory might be fine. We put an unnatural burden on folk to recall in late stage capitalism, paired with rampant gaslighting and other abuse tactics.

I use a paper diary, paired with storing my important appointments on my phone in iCal.

I haven't found a good solution to the fundemental issue that paper notes are unencrypted but offline, while electronic notes are easily siphoned up by electronic intrusions.

But by turning off services like iCloud, using encryption when offered, and reminding folks who act on information they shouldn't have I'm not required to excuse such behavior, you can greatly simplify your life.

Focus on consent -- being able to recall bare facts like medical appointments or the day you need to return your video tapes, and keep emotional stuff on paper IMHO.

(I usually keep two notebooks, one for "emo BS" for lack of a better phrasing, and one for more sciencey stuff, but they've merged into one during my unemployment.)