Junior Competition Info please

[collectivecolors]

Hi, I recently started learning piano and I have a competition in November coming up and it's my very first one. I'm wondering if there's any advice that someone who has done this before could give me. Also, will I need to have my piece memorized for the competition? I've looked at recordings of the competitions on Youtube and I never see any of them using sheet music. Thanks, all advice is appreciated.
Lydia