Ah...flying with Stargardt's. Good times. I was taken by wheelchair to my gate where I waited, and waited, and waited. I finally got up and asked at the desk. She said, "Oh no! They brought you to the wrong gate! Your flight is almost done boarding!" Luckily the doors weren't shut yet. They had to run me out on the tarmac to get on!! Nothing gives me more anxiety than traveling. You have to depend on others and it sucks because they mess up!
Best of luck to you! Just be honest with people about any anxieties and double, triple check every step!