You don't necessarily need to go the ER, but you can if that's literally your only option. It's actually better to see a foot specialist. If you go to the ER, they're just going to send you to a foot specialist anyway.
Whenever you go to church, try to look your best by wearing your most flattering outfit. Try not to pay too much attention to him and focus on the service.
Yes. It's not one of those things that's just going to get better on its own. The foot is also extremely complicated, and you need a doctor to take a...
You could start training him now by getting him accustomed to having weight on his back, basically turning him into a pack-steer. But, he won't be ready to actually ride...
Immediately rest, elevate, and ice your ankle. That's super important, because you don't want to make the injury worse. Then, you can put a wrap or splint on the ankle...