Do the same things you did for 520.
after this, you can experiment with supplements and other shit to see if it helps you out (in ISOLATION before you start stacking a bunch of shit). Until then, go with what you've always done.
The unracking a heavier bar will help, though. If you get anything out of ammonia (some people don't),go ahead and take a huge whiff of that.
Editorial note: If you haven't been on creatine, it's stupid to think that it'll help an hour before or the day before. You need to be on it for several weeks for it to saturate enough to have an effect. same thing with ZMA... yes, it helps with recovery, but it's not something you'll notice until two weeks or so into it.