EX fights are easy, my guy. Don't fret too much about it. Look up a guide, learn how to do your rotation (or when to heal), and memorize your role in the dance then you'll be set. As long as you aren't skipping ahead to enrage groups when you've just seen p2, nobody's gonna mind that much about your performance.
You can beat this fight in about 8-9 minutes if your group is good. The fight is 11 minutes. Treat EX like a practice mode for higher end content and it won't seem as bad. That and you're hyping it up too much. Stop it and just jump into a fresh group without worry or make your own and kick naysayers.
As an extra tip, if you choose to look up a guide then focus only on what you gotta do. Make sure you get your stuff right before paying attention to others.
