Just make the few adjustments, give her time to settle in. Always feed in the least disturbing manor with baby balls. They frighten easily and will not eat if something spooks them.

Tips would be,
Make sure the prey is really warm. not just room temp or slightly above. It really triggers better feeding response.
Try feeding at night when active, again try not to spook the snake with any loud vibrations or the likes, shadows and whatnot.

Baby balls can be picky, but most will come around when they're hungry enough. Don't be discouraged, no need to re-home it. All it may take is a simple assist feed to get it eating again, but you're not at that point just yet.