I'm a beginner and the horse I'm learning on is very eager. He's usually used for jumping lessons so likes to move.
He's generally well behaved and very responsive (I only have to twitch my leg for him to walk on!) but my one problem is that I just cannot get him to stop. I'm learning in a group of two and because he's so fast and eager, we're often having to stop for the other learner to catch up. When I pull back on the reins, he'll slow right down but will try and continue to walk, almost as if he thinks I won't notice if he's subtle! I've pulled right back and sat back in the seat and we will stop but for no more than a second or so and then he'll start to walk again. Sometimes he simply will not stop at all and no amount of pulling will change his mind.
Any ideas? Instructor says I'm just not firm enough with him but if I pull any harder, I'll pull his head off!