[zrail]

Couple thoughts that might help, might not:

* Try to recognize that you work in cycles and try to structure your life and your work according to those cycles. Try to really, viscerally understand that "not every day is gonna be a perfect day" means that some days will be amazing and some days will be terrible and that's part of living life.

* Try to recognize that arbitrary measures of productivity are a part of capitalism that we get taught to buy into at a very early age, at least in the US.

* Think about taking some online ADHD quizzes and if you score reasonably high, maybe think about bringing it up with your doctor. Doing that was a turning point for me personally, both because it's a very useful lens for framing my life and because, right now at this stage of my life, medication really does help me get through my days without the sudden realization at the end of the day that I just spun in circles for 12 hours.