So Diesel was doing great for awhile. He was going nice and round, responsive, willing, soft, etc. All of the sudden he is doing that "I'm a green 2 year old!" stuff he was doing a few months ago. He becomes hard mouthed, stubborn, fast, and just acts like he has never been ridden before in his life. So I have done groundwork with him then moved back into the saddle doing flexing, transitions, circles and serpentines...everything I could think of to get him thinking of me again. I'm not seeing any improvement.
At this point, I dread going out to the barn. We both end up frustrated and it's not fun like it used to be anymore. Has anyone ever gone through this? I want to send him off to a trainer, but since I am moving next month, I don't really have any money saved. I don't mind training horses, I just don't understand what is going on with him and though I love horses, I just get too frustrated when he starts pulling this stuff. He has passed a vet check, UTD on everything, teeth are fine, saddle is fine, etc.
I just don't know what to do.