You will eventually need a larger cage for her so what I would do is start to research which one you would like to purchase...Boaphile and vison cages make some nice display cages.
I can almost say for certain that the humidity is less than optimal as glass will condensate with temperature changes not really meaning that the humidity is right.
You could get some type of foam insulation and wrap that around three sides of the enclosure and that will hold temperature better making it easier to control humidity.
When you say you have a full hood what is that made of Glass, plastic, Screen? One other option would be to get a plastic tub like a hide box with a lid and cut a hole in it fill it with moist sphagnum moss, when you think your snake is in the shed cycle encourage her to stay in the moss box.
If she has multiple layers of skin stuck on her then she is at risk for many health problems and above all STRESS! which lowers the immune system. Again pick up a hygrometer so you are not guessing what humidity is, you can pick one up specially made for reptiles or one at a garden shop where you can pick up sphagnum moss too.
I hope this helps.
Joel Thomas