"Mom wanted someone to love
But has to learn to love herself first enough to stop and see all the things she is missing
I have nobody to help this situation along"

You can't make her reach out for help to try to learn how to love herself better. She's an adult now and has free will.

You are doing the best thing you can by loving and taking care of her child and showing her by example of what motherhood should be. Hopefully one day she will be ready to take over that role herself. If not, at least her child has always been loved and cared for in the way she deserved- by you.

That is the best you can do Eva. And that's all you can do my friend