My horse leads me around?

We had this problem and my daughter did use a chain. She ped through the rings and wound once around the noseband. The point is to help the horse see that you do have some power over her. She is a 1,000 lb. animal and can do considerable harm to you or anyone else around you if you do not have proper control. You do not need to continue to use a chain and you do not need to be harsh. Simply use it until she understands you are not going to put up with dominant behavior out of her. Once she understands, you can go back to a normal halter or a training halter. If she starts barging again, try the chain. You do not want to be walked over or dragged. Work with her. After you have her under control with that, try some groundwork in trick-training. This engages the horse in a way that they are not used to and they truly enjoy it. There are books on this and it is a lot of fun and useful to change the horse's attitude and you have fun with her, too. You will need to use patience with trick-training because it uses little steps to teach each trick.