Janel, it sounds like you’re doing all you can do. Change takes time. Sometimes it means hearing the same message, several different ways, before it clicks. Find out what that “weight number” means to her. Why does she want to lose the weight? What is she hoping to achieve by weighing…..lbs? Sometimes knowing why a person wants to weigh a certain number or what they’re hoping to achieve by weighing a certain number, we can better help them achieve their “real” goal.
Good luck! Keep at it! Change takes time and sometimes requires a different approach from both client and trainer.