Missed an appointment as I was attempting to improve my daily tasks

I was just printing out a new 'daily routines' chart I made when I felt the sudden realization that I had an appointment today that I'd forgotten all about. Sure enough, I missed it. This is the most ADHD thing that's happened so far... this week. Maybe I was dreading it because it was counseling and I subconsciously didn't want to go, but I didn't even think about it until I was printing the routines and had such a sharp and painful realization that I'd forgotten something so important. I have comorbid diagnoses but man, this one really screws me over regularly.