Hang in there, it may seem like a really long time since she's eaten b/c you're so stressed. FWIW, one of my twins took 6wks to learn to nurse, even after having a great latch at birth. I offered very often, & just cuddled him close when he seemed really upset about it. I also gave him ebm in a bottle, I think more for my peace of mind, I think it made things a little worse but you know how that mama's instinct works- all you want to do is feed & comfort your babe.
Hang in there & keep trying!
Hang in there & keep trying!