I have a soon to be 6 year old AQHA mare. As a four year old she was used as a barrel horse. I got her when she was 4 1/2. I spent a YEAR teaching her how to stay cadenced at a trot and how a loose rein doesnt mean that she is allowed to take off. Only thing with her is she cannot seem to figure out that loping can be slow and cadenced as well. EVERY time I ask her to lope she tries to rip my arms from the sockets. When I take her ANYWHERE away from the house she gets so excited, then when I try to make her slow down she gets super frustrated and starts head tossing, bucking, kicking ect. Now im not going to sell this mare. She's got waaay too much potential. However I've been attempting to slow her down for a year and a half now and were just not figuring that part out. I've been thinking of trying her on a calming supplement but im not sure if that would affect her the way I want it too. I don't want her to have to rely on them or make them a shortcut for good training. So what about sending her to a reining trainer for a few months? She's ranch horse bred and can DEFINITALLY move and stop. Im just afraid a trainer couldnt do anything more for her than I could because she WANTS to go.
Would sending her to a trainer be the best approach in this situation?