How to get the role of wendy in peter pan?

Its a play production for 4th-6th grade I'm in 6th and have been in 5 plays since 1st grade I did stone soup, 3 little pigs, chicken little, 12 angry mice, and Music man. I was signer, 2nd pig, chicken little, announcer, winthrop. I want some advice on how to get wendy what are my chances and I've had A lot experience in singing