1st shed gone bad???

It's time for Phoebes 1st shed...I awoke this morning to her skin in pieces just behing her head. I tried to catch her to help with a wet warm washcloth, but she was extra energetic and I gave up. I did not want to stress her out, she has a lot of work ahead of her today. My question is...Can she just do it on her own w/o me? I have to work 12 hours today, and she will be on her own. Should I come home for lunch and check on her or can she go 12 hours till I get home? How long does it take? And what happens if her shed is messed up or incomplete?? I misted real good and left the wet wash cloth in the hot area of her home. She is on her pine cone right now, loving on it
I'll check back before lunch for replies. Being a first time snake owner is stressful mama work
Judy