決まったんですか？ だとしたらおめでとうございます！ 原文を活かすなら、こんな感じで。
Thank you for everything.
Could you tell me when abouts I can join the show?
I need to know, because there aren't any good studios in my town and I cannot practice enough. So if we are going to tour in the U.S., I want to go back to New York and practice there before the show.