Heal Hermione's knee injury

Hey,

My name is Hermione and I'm a Shepherd/lab mix. I'm 5 years old and I hurt my knee pretty badly . My mom and brother love me very much, but they can't afford to pay the vet bills to fix my knee. I'm being brave and pretending it doesn't hurt too much, but that's getting harder to do the longer we wait for surgery. Please help my Mama get me the care I need to free me from pain.