I moved my horse a week ago to a new facility. Three days ago he was cantering in from the field when I called his name. Today I had to walk to get him and he tried to run from me several times. I ended up herding the entire group of horses towards the barn and then left them close by and he finally came to meet me in the barn. Before I could get him haltered another horse came into the small entryway and they started challenging each other in the small space. I yelled and shooed the other horse away and was able to halter my horse and bring him in, but he was high necked and fidgety the whole time. I tried to drive the other horses back out to pasture with a lunge whip but they kept coming back. As long as they were there he was a nervous wreck. I feel like he will backslide quickly with his training, but I have no experience dealing with a herd situation. My questions are:
1. How do I not only show dominance over him, but the entire herd, so that they don't harass him when I bring him in and send him back out.
2. How should I separate him from the herd when I want to bring him in so that they do not follow, but HE will?
3.I switched him from sweet feed to pellets shortly after I bought him because of his hot attitude. I thought that he had come along so well that I could try a regular feed again(as this is all my new barn offers)I am wondering if this is contributing to his hautiness?
4.The barn does not have a roundpen or arena where I can lunge him. Does anyone else have to deal with these sorts of circumstances and do you all have any suggestions on how to work with an uppity horse where the space is limited and seems to be crowded with other horses?
Sorry this is so long and thank you to anyone who takes the time to read it. I feel like I have come such a long way with this horse, but my confidence is being quickly deflated and I am wondering if this is something we can overcome or if I made a huge mistake by changing barns.