OP, you say: "I understand that we all see things differently but it's really hit me hard and don't know how this can be resolved at all."
If these feelings and perspectives are just coming up for her now, take heart in the fact that she feels able to tell you about them.
This is the first step, not the last.
Look at it as starting to lay the jigsaw puzzle pieces out on the table – they're all messy, some of them are upside down, nothing's put together yet.
But she's sharing what she's feeling, which says a lot already about the relationship you have. Many families don't have the room to even say these things. That's a good thing, not a bad thing.
If I might offer some suggestions...
Ask her questions - not "don't you remember X?" or "but don't you realise that Y?", but "what was that like for you?". "How is that impacting you now?"
Help her get it all out. It will be hard for you to hear, and sometimes she'll say things that don't tally with how you remember them, but remember that the memories she's sharing are the memories of a child, whose brain wasn't wired to see things the way an adult would.
You don't have to apologise for how you parented, but you can validate her experience of it and help her make sense of it – safe in the knowledge that as a child, her experience was limited to the experience of a child.
Then, switch your focus to now.
Let her know how much you want to have a good relationship with her now, and ask what she needs to make sure things are OK from now on.
None of this means what you experienced or did was wrong – you're not putting yourself on trial. You're just making room for her to work out what she's working out, and letting her know you're not going anywhere.
If you need to process what she's saying for yourself, do that too – but more than anything, keep your focus on your relationship now and in the future. She wouldn't be telling you these things if she didn't care how things turned out.
I always try to remember that a complaint is a wish in disguise.
My hunch would be that she's telling you these things because she wishes things were easier between you – keep that first in your heart.