For some nights, I believe she is just programmed to attack you from the very beginning, which I guess is inevitable. She takes 8% of your power each time she comes to your door, so perhaps it's best to just let her run to your door, rather than wasting power on trying to stop her.
Oh and for managing Freddy (don't know if I've said this earlier, or you know it already), she giggles each time she moves. So when you listen to the audio cues, on her fifth giggle, she will be in the kitchen, so you should close your right door.