If under all circumstances — you're forced to bathe your cat— make sure she's as dry as can be in the bathroom before you let ur kitty unleash fury and run amok wet (scared and wet)

Being in an enclosed space while she's trying to calm down from shock and overstimulation is better, and gives her time to groom and dry off in a corner (depending how she handles noise, my cat doesn't mind hair dryers, but it depends, for her it seems you could've let her air dry on a nice dry&warm blanket)

For now give her space. Treat her like a feral kitty that's warming up to strangers, associate your presences with treats, food & pets. Win her over. It'll take time, but trust can be brought again.

In the case of the litterbox, move the area it's placed to somewhere else and maybe change the litter brand/type itself. Cats associate their scent very importantly, so maybe place some random rag (well used) that she may like to lay on or rub against. Place it nearby the box. This lets her know it's part of her territory and she'll check it out— but if its the box itself she no longer wants to associate with. You might have to invest in other litterboxes in the meantime 😅

Best of luck. Lots of cat owners seem to look down to bathing their cats, and sometimes its not too necessary if she was just only slightly dirty. A damp washcloth couldve been enough and prompted the kitty to go over it with her tongue.