My Baby's being retired from riding for now??

This is my mare Anny May ,and the other day she was diegnotst with bad artharidess in her back left foot ,and now i can't ride her very nuch anymore on long rides at all. So I'm going through a lot of mintal pain ,and that kind of shit right now at the moment ,and trying to deside what i should do about my life now that i have nothing to ride.