Young Carpets are nippy, in time they settle down... but for now all you can do is handle her and wait.
What exactly are you feeding her? most carpets have a very high feeding response when the proper meal is offered.
If frozen thawed is the rodent 100 degrees?
How big is the rodent?
I handle her everyday and she is for sure starting to calm down but she tries to take a chunk out of my hand whenever I reach in the cage. I am feeding her frozen thawed fuzzies right now until I can buy rats. And yes, I make sure they are piping hot.