The most important (and most challenging) part of this week's homework is allowing for there to be nuance and grey area in something that is very raw and emotional for most of us. As adults, we are forced to remember that our parents are just people - messy, imperfect, and sometimes broken.
There's no one right way to enjoy the holidays and no one can dictate to you what you should be doing, feeling, making, buying, enjoying. Give yourself permission to celebrate on your terms. Accept those invitations. Or don't. Shop like crazy. Or don't.