You haven't done anything wrong xxx You've cared for and attended to your LO, you've kept her close and loved her, what could be wrong about those things?
As I said in an earlier post, I couldn't AP my DS, he was like the opposite of your LO, he wanted his bed to sleep in and wouldn't sleep anywhere else, not in arms, not in the push chair...I felt very similar to you really, why won't he sleep on me? Why doesn't he find comfort in me? It was so rare that he would nod off on me (teething or illness) that I would stay perfectly still so I could cherish it, and get someone to take a photograph!!
I remember one night in particular, his reflux was bad, he couldn't sleep, he was screaming and screaming, I held him for hours, he didn't want me to hold him so he was screaming for his bed but if I put him down he was screaming because of his reflux pain and because he couldn't sleep, in the end I just resigned myself to the screaming and told him I was going to be there no matter what and that I was sorry he wanted his bed but I couldn't possibly leave him in his bed crying like that so had to hold him. wow, it went on and on and on...and eventually he passed out in my arms. It was not an enjoyable experience at all but I felt afterwards that we had somehow bonded all the more.
Your LO might not be sleeping well and you might feel somehow inferior because she doesn't appear to gain instant comfort from your cuddles but you are not alone, many many parents have felt this way, and being there for her (even if it doesn't feel like you are comforting her) is immensely important, she knows you are there, she knows you are not giving up on her.
Many hugs.