sorry, i know this probaly isnt helpful but we always do a hype up at the beginning of practice- you could do that. This is ours (It gets louder each time you say it, the first one is basically a whisper, then builds up to a chant/yell):
Its time to get Loud,
Its time to get Lit,
(School name) Cheer
What time is it?
Its time to get Loud,
Its time to get Lit,
(School name) Cheer
What time is it?
Its time to get Loud,
Its time to get Lit,
(School name) Cheer
What time is it?
Its time to get Loud,
Its time to get Lit,
(School name) Cheer
What time is it?
when you are doing it ur in a circle and your arms are like wrapped around the people next to You's shoulders and then at the end ur all really close together and ur hands and like in the air bouncing up and down
its kinda cringy but its fun.