I am trying to create a standard right to left bound booklet. However, I have already accidentally created one that is bound from right to left. Trying to change it now that it's formatted disorders the pages and does all sorts of other things. If anyone knows how to effectively change the binding orientation of a booklet with facing pages in inDesign without making a mess of the order of the assembled pages, I would be greatly appreciative. Thank you!
You did not tell us, which version you are using?
If you are a CC subscriber, change the application language in the CC app to any MENA language (Arabic, Hebrew, …) and install them above your version as it will add the right to left functionality. This would enable you to change everything to RTL mode.
After all you can change back the CC to your language, no further action needed, but functionality remains.