The thing that strikes me about this letter is that I do sense an underlying real desire to buckle in and try to figure out a good way forward. She might not be perfect, either in her life or even in the letter, but I do get the sense that she wants to be better. And the reply really speaks to that - I hope it gives the LW things to think about, even if they aren't necessarily spot on (because, yeah, it's very hard to give therapy over the internet, but this does about as well as I'd hope).