I had to scroll through quickly since I'm in a hurry here, but basically just get what kitten food you can into her be it dry or wet. Offer her everything you can. There's no need for kitten milk unless she's at a nursing stage. The pet stores will have a product called NutriCal which is a high calorie paste to get the animal to eat. The cat one also has Taurine which is found in flesh. Cats need this. Stay away from fish because it has ash in it and that causes cats UTIs. You can also give her cut up cooked chicken including some of the fat. Get her to the vet to have her dewormed. The stuff on the shelf at the pet stores is ok, but it can often cause severe stomach upset and sometimes does more hard than good. The stuff the vet has is often easier on the stomach. If you're worried about the cost of a vet visit then shop around. Let the vet offices know you just adopted this kitten and see if they'll give you a discount for adopting something in such need. A good vets office will work with you on cost. If they know you're in a tough financial situation then they'll work with you.