Ah, I think I understand. Although, my take on those dullster communities is that they're less about being a boring human but more of a recognition that a lot of tasks are pretty mundane but deserve a place to be discussed/celebrated. There may be value to be found in posting your successes and discussing them.
I don't know of any communities that are specifically about what you're looking for, but I guess you could also check in !adhd@lemmy.world and ask.
I'd love one!