If you get her on a recovery diet, meaning more x more frequent, she will shed as needed. Are you feeding her in her enclosure. I always pull mine out and put them in a heated 15gallon tank thats covered on all sides and enough to let some light in and dangle a f/t and found less distractions means better eating habits..
This in itself is a distraction to some/most snakes, by removing them form there comfort zone... Id simply just feed them when its dark in room, with little ambient light.