A question in general. How would you force her to listen to you? I never had much luck at that.
Have you tried sending her to a hitting clinic? Around here, the girls go to UofA and ASU and they see the elite hitters, that are a few years older than them and a light bulb goes off.
This Amy,,,,is an excellent recommendation.
Many times a different voice saying the same basic things using different words----can "click" for a kid.
We've all seen that happen --- I'm bettin.