Hell yeah- give it a try. I ditto what most of the others have said- i.e. learn what the judges expect of a good lift in the fd where you want to compete, how the flights works, when to wrap your knees, etc…
The only other thing i would add is to keep an open mind about the meet. The cool thing about a being a three-lift lifter is that usually at least one of your lifts goes well- it just may not be the one you were expecting.