I've found folks pretty helpful even among the veteran powerlifters.
Learn the commands and take the week off prior to the meet. My trainer sets my programming but ramping up to the meet things get intense, starting with volume, then moving to heavy triples, doubles and singles. Then a week off that is oh so sweet. That week off followed by eating like a boss post-meet feels so amazing. So beyond the adrenaline pump and potential PRs on meet day, I love the entire process.
And I've only done 3 meets.