Don't beat yourself up over a few slips, there isn't one thing we do that will make or break the sitch.
The moving out part is tough, very tough, hurts like h3ll, I'm sorry.
What are your plans for the holidays? This will be tough (I had 3 holiday seasons from h3ll with my in-house MLC stbxw). I'd like you to find some things for just yourself, even if just a few minutes, some things just for YOU.
Focus on your kid and try to not let her and her plans/words/actions ruin YOUR holidays.
Show her a kind, strong man who puts his child's enjoyment of the season ahead of her choices in his mind, and ACTIONS.
Hang in there!
In the depths of winter, I finally learned that within me there lay an invincible summer. - Albert Camus
Uncertainty is the very condition which impels people to unfold their powers.-Eric Fromm