you may need to help him/her
try getting a damp warm paper towel into a tupperware container and let her/him sit in it for 10 minutes. put the lid on the tupperware container.
I've found that a bit of glycerine mixed with water can do wonders if all else fails. Generally I dip a paper towel in it and brush it over the areas where the skin is stuck then try to help with the shed once the skin starts to soften. Upping the humidity and letting him finish the shed himself is generally the best option though.
It was damp and the first time it didn't do anything then I tried it for longer and it still didn't work. It's starting to come off a tiny bit after I spray him a lot but we might take him to the vet he's been acting kind of weird lately.
What I do is take a Ice cream pale then line it with wet paper towels. Then bring it in the bathroom with me while I take a hot shower it gets pretty super humid in there!!! But only do it for 10-15 mins then help take the skin off with a tweezers!!! It is a Crested Gecko so be careful not to expose it to hot temps too long!!! Hope it helps!!!
Get a qutip and rub her with it. But in like warm water. Then put her in a humid hide for 10 mins. then do it again So try that then update us ill help you cause i raise them and they will dont worry ok