I would be sure to drop off her stuff (less anything you feel is rightly yours; #3 is neither fair nor realistic, and it's only going to cause more unnecessary back-and-forth than what she's worth at this point) at her workplace, at my earliest convenience.
I would be sure not to duplicate your daughter's Christmas gift.
#1 and #4 are needless mind-reading/enmeshment -- DETACH. "Whatever." Or, as SmileyPerson likes to say, "Smile and wave."
#5 is good awareness on your point -- use that knowledge to react (or, in this case, NOT react) accordingly.
Happy Thanksgiving, P. Try to enjoy the day, and be thankful for your daughter and your newfound strength.
