Aw, don't worry, you'll get it! I second thawing her food near her enclosure. After a 2-3 hour thaw, I drop the mouse hopper in a plastic bag and warm it up with hot tap water. I take it out of the bag after 20 minutes, and then I use a hair dryer on low for 10 seconds to heat up the food's head.
I had the same issue with my baby when I got her. I was terrified and frustrated and she didn't eat for 2 weeks, this was after a really bad shed, and leaving her alone for another week. Though she did eat and I was able to get her to take a F/T, and you'll get it too!
Between the amazing advice here and this video below, I was able to get my hatchling eating, and now she's a little piggy!
https://www.youtube.com/watch?v=CSX79DpN2b8