A.P.
I hope you don't take this response as rude also - but why aren't you enforcing the rules?
You're the parent. You're in charge. Stop playing with stickers and BE a parent.
You know the sleep she needs better than she does. You know she's playing a game. Now put a stop to it.
She's a kid, she's supposed to push boundaries. You're a parent, you're supposed to enforce boundaries.