I appreciate this...and I've realized lately that all my anxiety and FOMO about my September trip come down to pretty much the same line of thinking you describe here. My anxiety has spiked pretty hard at a few points this summer (golly gee, wonder why) and I realized I've been looking toward travel as a way to "fix" myself...because it usually works. But instead this time around it's turned into a feedback loop of anxiety as I stress about whether or not I should go, and I'm not positive I won't have the same emotional reaction you did if I go. Or I might enjoy myself, as others have, and come back feeling refreshed. Either way, though, I've been realizing that it's not been good for my mental health to obsess over this trip as the "fix" for my feelings. I still haven't cancelled my reservations and don't plan to make that call until the end of August, but I've been able to let go of it a bit for now and I'm feeling pretty happy about my staycation options (and the money I'll save) if I need to change my plans.
Right now I'm personally satisfied with what I'm hearing about Disney's safety measures and dissatisfied with what I'm hearing about airports and Florida in general. If I cancel it's almost probably to be based on Florida's general response and infection rates rather than on what Disney is doing (unless Disney makes changes for the worse, which I suppose could still happen).
Actual question: I've been seeing reports that Disney Springs has lower mask compliance/feels more crowded/feels more dangerous than the parks. Can folks who have been to DS please continue chiming in with reports and opinions about that?