Leopard gecko please help?

my leopard gecko has gotten so skinny and i feel terrible! ok so a couple months ago the skin over her eyes stayed when she shed but i just umed she would get it off as she normally did. but then she didnt and the next time she shed it just stayed and i think that shed went over it. then she wouldnt eat becuz she pretty much couldnt see :( she got pretty skinny the skinniest id ever seen her at the time becuz before she was colorful and had a ridiculously fat tail. i got her a new heating pad becuz i suspected it might have broken. then wen i could see she was getting ready to shed again i sprayed the cage liike crazy with a spraybottle for a cuple days b4 she shed to get the humidity up and the next day when i woke up she had shed and the skin had come off her eyes :) her tail got a little bit fatter than it had been wen she was really skinny and then i noticed one eye had kinda closd up again and then eventually the next one did too. now her eyes are closed again with the skin. ive been spraying her cage twice a day and i made her a humidity box for the next time she sheds. she had sand b4 and i read that they shouldnt have sand so i bought a tararium liner that they are supposed to have. shed really really skinny now and these past few months has been the very first problem ive had with her since i got her 7 years ago. im really scared she is going to die and i dont want that to happen. she seems to have lost her appetite too cuz i dont think she can see so i put a mealworm right it front of her nose and even though she cant see it i was hoping she would eat it but she just turns away even if i put them on the ground for her. she has a 20 gallon tank and i feed her mealworms. i was going toget her cricketz but she cant even see them and i really think that they would end up killing her. the skin has been on her eyes the last cuple of sheds i try to get it off with warm water but it wont come off that easy and i dont want to stress her out right now by holding her down. so please help what do i do to get the skin off her eyes so she can eat? please help thank you ;)