The real takeaway from this is about controlling sensory inputs. My wife is "neuro-spicy" and we have to consider those things when we go adventuring. What we've found best is to make sure there's always enough "controlled" things each day. Going to a museum, walking around a city, or going for a hike are great, but unpredictable. One or two each day are fine, but too many can cause burnout. Earplugs, books, snacks & water can help a lot with this stuff. Planning ahead is very important.
As an example, she absolutely hates airports but doesn't mind flying. The noises, announcements, people moving around, never knowing if your gate will change, all of it is awful to her. I don't mind the airport but once the plane is in the air watching the time tick down is torture to me. Everybody's a little different.
The "spoon theory" [1] can help things make sense, and it's a great start, but it's a bit more nuanced than that. It's more about controlling exposure to "unexpected" stimulus.