Ok, this is my first time competing, and the dieting is coming along nicely. Last thing i want is to screw it up at the end after a long 10 weeks, because of a little mistake like water retention. All i need to make sure im completly dry is cut the water 18hrs before the prejudging???? How do i make sure im dry for the night show also? Is there any other little mistakes i should be worried about that could mess me up?