You will be good. Make sure that you check a couple of things the day(S) BEFORE.
Set your boots in the bindings and tune the bindings on the boots (plenty of videos on YT about that). Make sure that the boot is well wrapped by the straps.
See if the angles the board is set up with work for you, if not change them.
try the bindings one last time with your boots on. It will save you a lot of stress and time on the slopes.
2014/15 -3- Kirkwood days
Arbor A-Frame 158 2009-10
Jeremy Jones Hovercraft 156, 2011/12
Subaru WRX 06