Well, what i would do is, get some dog treats. ( Well, some people say its bad to teach a dog by treats or train them with treats, but i dont think so ) i would make him do like sit, stay or whatever you have taught him. Give him a treat if he does it. Then i'd put one in the kennel, tell him whatever word you use to get him in the kennel. If he walks in give him a lot of praise. If he doesn't, keep trying. Soon he'll figure out that he gets a treat if he obeys. Then, take a way the treats, and if you say "Kennel Up" or whatever you say to him to get in the kennel, he walks in shut the door, and give him A LOT of praise. I cant stress enough that if you dont give your dog praise for doing the little things, then he'll become bitter like you are right now lol. Hope this helps!