Got it.. I will admit to being unfamiliar with the challenges of ADHD so I apologize if my suggestion appeared to disregard said challenges.

If I can ask a follow-up question: Is it the act of writing it down, or the whole recall aspect of it that is challenging? Or something else?

I've personally starting using audio transcription with a voice recorder to capture ideas more easily when I'm not at my computer (I hate typing on my phone keyboard) and that has made building these kinds of diary/log/notes documents a lot easier because I can just speak my ideas into the recorder whenever it is convenient for me, instead of waiting until I'm at a computer.