i have a high-spirited 6yr old saddlebred im training to ride western. she lives with another horse, a 20 some yr old quarter horse. i used to ride her but since she has gotten so old im tryng to train the SB to take her place. the SB can be led around at a walk with little to no problems. i have a round-pen that i can work with her in. when i try and up it to a trot she throws her head back and refuses to do more than a walk. any pointers? id like to have someone from my area come to my house and maybe show me how to do this. i dont really have connections to ask help from.