My new horse lunges ok on her left side but she has issues lunging to the right. She refuses to cooperate. When lunging to the right on the line she rears up, faces me, then plants her feet on the groung not willing to move. I have tried to to be persistant. But I am upset with myself that she "won". Which i can anticipate our future lunging experience to be the same. I have looked up info on You Tube but I can't find anything that is similar to my situation. Any ideas on how to get her to lunge correctly on her right side without testing me? I need to "win" here so she knows that I am the alpha.