You still have time to practice Redirected Walking before the exam (seriously practice if you want to try this or you can get really sick). The Yosemite trail is 4km that you have to walk to complete the exam. There are synced checkpoints for everyone and a backup encase of crashes. THIS Friday Oct 9th, 8pm CDT. 
https://www.timeanddate.com/countdown/vacation?iso=20201009T20&p0=64&msg=Yosemite+Trail.+Exam+4km+walk&font=serif
You can practice here or on your own. 
https://vrchat.com/home/launch?worldId=wrld_3fd702a3-bf52-4360-aeb9-a788244ee9b5
The lecture if you missed it.
https://streamable.com/yj973g