I have the same struggles. Always have. I recently got a calendar that I keep right outside my bathroom and some stickers that I like, and I’ve started adding a sticker to the day when I remember to brush my teeth and do other important hygiene tasks. It’s definitely a very “immature” way to handle it, but I’ve been doing better since I started.
The reason we struggle with it is because it is a boring task with virtually no dopamine payoff involved. So, my thought was to add the dopamine myself with the reward of a pretty little sticker and a constant visual reminder of my positive choices. Does it feel a bit like I’m a kindergartner getting a gold star sticker at the end of the day? Yes, definitely. I was embarrassed at first that I had to resort to such a juvenile tactic, but dopamine hacking is necessary for us ADHD humans to function. 🤷🏻♀️