Young ball python ridiculously active??? Help

[Royals1988]

Hi there i have a little girl she was hatched in December i was told, she was eating fine now she is just not interested in food, she weighs 126g spends alot of time hidding (which is good) but i just cannot get her to eat,

Shes in a 21L RUB her heat at the warm end is 30'c and at the cool end it is 26.1'c both hides are identical. i am just abit worried i have tried everything i can think of to try and entice her to eat here is a list of my methods so far

Dry thawing
Wet thawing
wet thawing then using a hairdryer to dry mouse off a little
Braining
leaving the mouse in her vivarium for a 24 hour period with the vivarium darkened
have put the mouse in the vivarium and lightly misted the vivarium
also with the mouse brained.

Any help would be great guys thanks