First 9 ball tournament tomorrow, 432 and under, any last minute pointers

I’m a 3/4 in APA and trying to play more pool. One because I want to get better, and two because I’m going out to Vegas for singles in April and want more high stress environment than normal league.

Tomorrow’s my first 9 ball tournament for 432 and under. I’m limited to what I can play in due to a lack or robustness and not wanting to do 500-600 unders. Any pointers or advice for tomorrow? Loser racks, so any preferred pattern of racking if that’s a thing? Obviously me skills aren’t going to improve over night, but curious for those experienced any things you’d pass on to the newbies.