Sorry if you have already told me before but when did you get this snake?
Don't be disappointed if she didn't eat her first meal with you. It is common. Don't think that f/t is out of the question now. Wait one week and try again.
Did you pre-scent before offering the food to her? I usually just blow dry the head of the feeder in the same room as the snake. The heat from the blow dryer makes the smell very strongly.
Next time, wait for her to poke out of her hide a little bit before putting the mouse in front of her so you know she is ready. Keep the lights off in the room.