I loved reading this, and, wow, can I relate! Thank you!
First I had chemo brain, and now I’m on a medication that has as a side effect fuzzy thinking. I’ve had to rethink my writing goals and move away from anything requiring deep thought, strong analysis, or heavy duty research, at least for the duration. I find myself moving instead toward navel-gazing and reminiscing — and, yes, whining about it — but I’m working at getting beyond that and writing things I can actually be proud of again. Lol.
But I wonder why you feel you have to publish even once a day? It may be a goal you’ve set for yourself, but how practical is it? Do you fear losing your audience if you don’t? Or do you fear losing who you are if you don’t? It’s good to set goals, but once or twice a day is an arbitrary limit and really is quite meaningless when you’re writing things that give you pleasure.
It could be you’re being too hard on yourself. (I know that feeling, too!)