If it's only been a week and you've tried feeding her several times, she's probably stressed out. Stop handling her, touching her, opening her enclosure, EVERYTHING for a week. only open the cage for spot cleaning. Spot clean and nothing else. Do this for a week, and then try feeding her again. one week is not going to hurt her. Most snakes can go months without eating. How old is she? Hatchlings can go a few weeks, adults can go months with no food.