I’d also up your hot side temps some more to about 88-90. Heat helps with digestion. I know that isn’t the case here, but it could possibly help with bowel movements and such(correct me if I am wrong, this is just a guess). Plus keeping it between 88-90 doesn’t hurt, and is safe.

I’d black out the cage 24/7 and only open it to do daily checks/sprays, and to handle as little as possible. I would also recommend placing her in a plastic tub. The length and width of the tub should be equivalent to the length of your snake. I usually recommend up to length of tub=length of snake, but I would try a smaller tub for now. Anything between that is fine, but try to go smaller.

Another thing with plastic tubs is that it is a lot easier to keep up humidity. For the meantime, while she’s in the tub, keep your humidity up to 65-70%. You don’t need to keep it up this high all the time, but sometimes it works, and 70% humidity is fine and safe. And make sure you have a hot side of 88-90.

While she’s in the tub, leave her alone for a week, completely black it out. Usually you can achieve this by placing a towel over top of the entire bin. She looks really small so I’m sure you’ll be able to cover her entire bin. Do your daily checks as needed. After that week is over attempt to feed her.

I feed frozen thawed because it’s easier, cheaper and safer. There’s a few methods to properly defrosting your rat/mouse and making it more appetizing so I’ll just input mine: I first fill a container with room temp water. After about 30-45 min, if the rat is still cold I’ll do the same thing. Once the rat feels squishy, maybe a little cold but not super, I’ll move into like warm water that’s about 26-27(76-78) degrees and let it sit in there for another 30 min. The rat should feel about room temp, and be squishy. I press my fingers against the skull for a few seconds to detect if it’s cold or not. If not then I place my rat in water temps about 34-35 degrees( not sure what that is in Fahrenheit). Leave it in there for about 5 min, and then offer it to my snake. If she doesn’t strike at it for a few minutes. I leave her alone, reheat the rat, and then about 10-15 minutes later I leave it outside of her hide overnight.