We think he fell in a hole ir something but he’s okay now just hurt his foot thank god
Does your vet have an emergency number? A lot of them do for an emergency... If not then check to see if there is another vet that can take you.
Get a vet! Medical advice, however well meaning, is dangerous to give over the internet. You do not know who is answering you, and what level of expertise they are at. They can tell you anything! There is absolutely no way anyone here can tell you why your yearling is lame.
I think he’s doing better
Try to make him walk, don't let him lay down and call a vet as soon as possible! How is he going right now?