Hi ... fear not you will be fine ..
After many years I’ve settled on a foolproof method of getting a perfect shed each time ..
I spray their vivs whenever I'm doing water changes and whenever I think about it BUT when mine go into shed I spray the viv EVERY day then as soon as their eyes clear and they get their colour back I start spraying a few times each day ... You'll probably find the messy , rolled up lump of skin UNDER his hide afterwards ) .
Note they get their colour back and the eyes clear a few days BEFORE the skin actually comes off .
May I ask what substrate you’re using currently.. ?
I only use Orchid bark ( maybe called Reptibark over in the states)
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