re: Getting a lesson next weekend - suggestions

Tell the instructor to keep it simple to one or two things. Preferably one thing to work on with the swing and one with proper setup to the ball (grip, Pre shot routine, lining up properly to the target with club face and feet etc).

Also, see if he can take a video of you doing the move he wants you to do so you can try and replicate it in front of a mirror at home to verify you are doing it correctly. No full swings or balls necessary in the house for that.