No suggestions, but wanted to share... My daughter started karate at 8, after many different sports/activities. She liked it, but did not like the break after the first sessions ended. We found a different dojo, and she continued there... for the next 10 years. She is was eligible for her third degree black belt test, and taught at the dojo for almost three years. She gave it up when she graduated high school and went to college.
One of the biggest unexpected benefits were the ability to focus in school, and treating herself more healthy, to this day. I attribute the national honor society and dean's list partially to what she was taught at the dojo.