Difficult Conversations with Teenagers

I just completed listening to your podcast on difficult conversations (after having one with my 13 year old daughter). I currently take her to taikwondo 2 nights a week. She wants to join the “sparring team”which would add two more nights a week. I have to cry uncle. How do we come up with win/win solutions in a parent-child relationship? I know I’m the one who has to tell myself I’m doing enough…and I can’t expect to get that from her. Would love to hear your coaching advice on a situation like this, which I know is so common. Thank you!