She looks very dehydrated. Also, if this is the "4th or 5th" time she has gotten that much dirt stuck in her mouth, then switch to a different bedding. If she is a spider-type and has a wobble that could also make it hard to shed. Add some rocks or something for her to rub on other than the ground too.
Humidity needs to be 65-70% during shed, and not less than 50-55% the rest of the time. You're risking infection if the dirt makes the gums bleed and such too - and mouth rot / gum infection can be difficult to treat as well. What is the exact set up? Temps, humidity, how are you measuring both, tank or tub, etc