She needs to see a vet who is familiar herps, @athenala004 . It’s not normal for a corn to spend days laying eggs. You should take a picture of the eggs with you to the vet. f you don’t already have a vet, you may be able to find one with the info here: How to find a Reptile Veterinarian
Sometimes corns lay even without being bred. It’s frustrating and confusing for owners. It’s possible for them to mate surprisingly quickly. If she was ever temporarily with a male, say maybe when you were cleaning a tank, well…
If she’s just staying in her nest box, she’s probably in need of hydration. Try offering her some fresh, lukewarm water right where she is. You can use a coffee cup or something similar. Try holding it right by her face, or even gently putting her face in the cup near the water.
It’s obvious you care about her. You’re asking about how up help her. At this point, I’m afraid she needs to be seen by a vet. Good luck. Please let us know what happens.