Most non-voice systems have too much overhead, and things like adding something to shopping lists while cooking before you forget are a hassle that disrupts what I'm doing.
I have a Garmin watch that tracks heart rate, steps, and sleep, a Bluetooth scale, and my toothbrush can track when I brush and for how long, I'm pretty big on buying the smart version of everything, unless it's basic functionality would stop working if the cloud shuts down.
The main analysis I do is failures. I've learned that for me, practice does not make perfect, and any mistake I make will almost certainly happen again without focused attention, so my #mistake hashtag has been very helpful.
Sometimes I even think about building a new custom notes app, that's purely just a Facebook Messenger window with yourself, with search and a hashtag list, or switching to logseq.
I usually follow up on mistakes by looking for patterns and... generally just avoiding the conditions that led to the mistake entirely.
Like, one of my personal rules is "There is no later". I try not to rely on memory for anything important, I assume the concept of remembering something later is only accessible to computers and sticky notes.