What do I do is she has no interest in making it work?
She has said that she is finished with me and is moving on with her life, I'm so confued by everything, I feel my world is falling around my feet, I'm to blame and there's nothing I can do to stop it.
Yes I can live without her, but I don't want to?
You agree with her and let her go.
It really is the quickest way to get them back if there is a chance of that possibly happening, there are no guarantees in life.
However... continue doing what you're currently doing and I can guess what will continue happening in your situation.