IOE will go well. Just don't allow yourself to get sloppy on flows and callouts while you wait. I would recommend running through all flows at least once a day in there entirety. Also take 20-30 minutes out of your day and run through the limitations on the quizlet app for all variants. It's amazing how quickly your brain will dump those if you don't use them. LCAs aren't there to bust you. They are there to verify that you can do your job safely.