Sorry you are stressing about this. If you still have had no luck getting him or her to eat, it may be that he/she is not used to people it may just be that it makes him nervous to have someone towering above with tweezers and a worm wiggling around.

It that is not working for you, you might want to try just leaving him in his container in a quiet place with just a little light, enough to see the worm, it might make him a little more comfortable.

Also, if getting a picture to post is not an option you could go to your state wildlife site and find a picture of one like you have, that is how I Identified my Gray Tree Frogs, I just looked up "frogs of North Carolina" and found a page of just reptiles and amphibians. Really helps to know what you have, try this one https://www.aza.org/frogs-in-mississippi.