With most good clinicians I have ridden with, the question of “what would you like to work on today?” is something of a formality. It does give them an idea of where you think you are, but they will watch you and work on what they think will be most useful to you, so I wouldn’t worry too much about that.
If you can possibly get someone to video your rides, its incredibly helpful to watch your first day ride before you go back for the second day.
For me, the second ride is always where I will learn the most and make the most progress. Particularly if I have been able to watch and analyze the first day video.
It’ll be fun. Its so good for young horses to get out and do this kind of stuff. She will probably be fine because she is being kept busy. And if she’s obnoxious, you’ll learn some new tools for dealing with it!