I think it is widely accepted that when two horses ask, “Am I in charge of you or are you in charge of me?”, the one who moves the feet of the other is the more dominant horse.
Problems with a horse are not fixed because we want them fixed it. For things to change with our horse it must begin with things changing with how we work with our horse.
I have come across a few horses in my working life that were committed wind suckers or cribbers, but I have never owned one so you can take my comments with as many grains of salt as you like.