How is she on a NND? And have you done more than 1 in a week? or 2 consecutive?
I'm asking because if she can handle it it may be better to just go for it, stop offering and do EBT every night, I found with DS he needs regular routine to enable him to extend his nights so might do an EBT on a tired day (or the 2 NNDs we tried) but doesn't fully extend his night sleep until it is the every day routine. I couldn't do that with him though as he was an utter mess on 1 NND, a danger to himself which is why I only tried twice.
Or just start BT later and acept it's a later BT and shorter night but avoid going through the 45 mins of frustrating PD?