The hide is the perfect place to add moisture especially if she likes to be in there. Make sure the hide is over the heat source, add damp paper towels or a dampened old towel under the hide. This will basically make a high humidity box that will help with the shed. Still mist the tank to keep that humidity up too. It can take a couple of days but this will help greatly. After shed remove the towel as you don't want it to stay that humid all the time. Do you have a hygrometer? Sheds are usually pretty noticeable. My biggest indicators are the eyes are covered with skin and they turn ashy and their colors don't look so vibrant.