My daughter just acquired a rescued mini, who is a very sweet horse. We do not have any experience but friends with horses are helping us out. When we try to lunge her, she bucks and kicks and runs completely wild. We've been told to let her go and let her get tired, as well as, she is acting like this due to the coler weather. I'm not sure what we are doing wrong but my daughter is now terrified to lunge her.