since this is your first meet i would stick to whatever program you are doing now. the only difference would be that i would start incorporating in the commands that are used in your federation for bench, squat and deadlift. newbies typically get redlighted in their first meet by missing commands.
start pausing your benches as well. get really comfortable with that and start working in some singles to figure out your openers. newbie openers should be, IMO, something you could hit for 3-5 reps in the gym on any given day.
with all that figured out, i would then train like normal up to two weeks out. at two weeks out i would work up to my openers, maybe hitting them for two sets a piece or one...up to you. do some accessory work on each of your training days. then take the last week off completely.
don't make it complicated. it isn't. go have fun for your first meet and don't bomb because you went too heavy on your openers or you made stupid mistakes by missing commands or did something illegal in your fed.
get in, have fun and set a baseline total that you can then build upon in your next meet.