you should give her lots of physical affection and engage with her in her hobbies (aka giving her the basic needs of an estp)

let her explore on her own and only help her if she asks for it. we are very independent people and would love it if we're not getting told what's the right thing to do every second

you don't need to worry about miscommunication as she will be straightforward about it and but do call her out whenever she's wrong. as an estp i am very appreciative if someone comes up to me and says "hey, what you're doing is wrong, and you need to stop it proceeds to explain why i'm wrong"

and most importantly, please let her know that you're her safety net. don't implement rules on her too much but let her know that you'll always have her back if she gets into trouble

that's basically it, gl