MY FUCKING DOG KEEPS EATING EVERYTHING

this is my dog revie, shes about 6months AND SHE JUST ATE A WHOLE BOWL OF MY CATS FOOD. she eats my cat's litter, leaves outside when we go on a walk, rocks, hair on the floor, FUCKING EVERYTHING. she doesnt bite, ive tried giving her teething toys. AND SHE HUMPS MY CAT????

i love this dog, ive only had her for about a month BUT HOLY SHIT SHES ACTING LIKE A WHORE ON CRACK?? what do i do.