Next I'd say get some more food in her even if it means force feeding. Then fill her tub with crumpled up news paper and leave her alone just check her water and make sure still still among the living. Getting her eating is first priority.
My thoughts exactly. I had a hatchling this year that refused meal after meal and I had to force feed her 4 meals, after that things kicked in and she hasn't refused since and is growing well and catching up.