DH and I both deal with sensory overload. GENERALLY I do ok in the parks, but there are a few attractions that I can't deal with due to the sensory stimulation.
1- It's Tough To Be A Bug.
2- Captain EO.
3- Space Mountain
4- Mission Space (more claustrophobia than sensory, but it's all tied together)
5- Dinosaur is iffy... I do better on it than DH does
During parades in the MK, DH and I will walk through the stores/restaurants along Main Street to get out of the crowd and noise. That is overstimulating for both of us.
I also bring low profile musicians earplugs to filter out much of the noise, and I also wear sunglasses and a hat. It gives me the illusion that I have my own space, sort of like horse blinders.
Some attractions that I do REALLY well on are:
1- Spaceship Earth
2- Soarin
3- Living with the Land
4- Tomorrowland Transit Authority
5- Tower of Terror (believe it or not! It's one of my favorites

)
6- EPCOT country movies - France, China, Canada
There are a couple of tucked-away nooks that I like to "escape" to (besides my hotel room, of course)
1- Morocco Pavilion, when you enter, it's to the left. Smaller nook with a water fountain, covered, and away from the crowds.
2- Animal Kingdom- there are a few small huts not too far from each of the QS restaurants that have 2-3 chairs, and sometimes a table. No one knows they're there, and they're a great get-away. Check out WDWPRINCE's
YouTube channel, his 2013 trip. He shows a lot of these spots.
3- MK Liberty Square, there are 2 rocking chairs toward the right side of the Hall of Presidents, tucked up and out of the way.
4- Rose Garden near Cinderella Castle
5- As soon as you exit Tower of Terror (after goign through the gift shop), there's an overhang that's a nice spot to rest.
I also like to visit the nearby hotel lobbies. They're always cool, and during the day, generally not very crowded. If you're at the MK, pop over to he Contemporary and go to the Convention floor. If there's not a convention going on, this floor is generally deserted, and they have really nice (empty) bathrooms, too. I also like the Wilderness Lodge lobby. Go up a few floors via the stairs near Whispering Canyon. There are some couches/chairs that overlook the lobby that are nice to sit in. We ate a packed lunch up there once, it was great! Also, the Grand Flo lobby often has a band or pianist playing music, and is a great place to relax.
Know your limits. I generally do very well IN the parks, on rides, etc. I know what rides to avoid, and take my time. Earplugs are your friend. Make a list of what attractions you want to try, and YouTube some that you're not as familiar with to see how sensory they are.
