keep feeding her, keeping her warm, but also i would recommend you find a new vet and try to find one that accepts care credit for the future. i say this because i also understand not having the extra funds to pay 1000 up front but you can get a care credit card that allows you to pay it all off over time and some vets accept them.
www.carecredit.com try looking into getting one and finding a vet that accepts it. it'll save your life and your pups if you need emergency care and you can't afford the costs from it.
good luck and praying she gets much better soon.