Progress

It's been a couple of weeks since the last incident. She seems to be doing ok.
She's been in fairly good spirits, and laughing and playing with the family.

We're easing into the homeschool lifestyle. And really, that's what it is. This has changed the dynamics of our household significantly; mostly for the better, I think.

We communicate more. We share our thoughts more. We set goals together.
The girl and I are making the decorations for our tree this year. We spend evenings working on them and talking after the little has gone to sleep.
So I suppose some good is coming out of all this misery. My big girl and my little girl are closer than ever. My girl and I have been able to reconnect. We're home, with my husband as a buffer between us and the world. (He's been wonderful about his anti-social family.)
Things are definitely on the upswing. I expect there will be more setbacks.
That's just life. And it hasn't been all that long.
But the future is looking promising, and we have a mellow kind of contentment instead of the constant despair that seemed to loom over us.