As a mom myself, I can say what makes me feel alright, and that things can be ok is knowing my kids are alright, seeing them accomplishing even simple goals is really rewarding to me, it does give me hope to see them learning to drive, having a job, doing well enough in school, being healthy enough.
When I see that I think all this was worth it. And realize that they, the future are what its all about.
I have to say, your post made me cry, because I think sometimes, even though I try to keep it hidden, my kids pick up on these things too.
We can't change the past, or carry someone else's burden for them, but knowing that you care and you are making it, is probably just as rewarding for her. Good son.