I am currently planning on starting my Shetland Mare. I have other minis that I have broke to drive (if that is the right way to put it). So I have a fair understanding of how to teach a pony how to drive. But she is pretty green. She is halter broke and is okay with children, but she has a problem with bucking. She has also never been driven. Although she is healthy enough to drive. What methods do ya'll use and do you have any advice?