Sorry to hear about your Dad, Colleen.
I decided last year that for Thanksgiving and Christmas I was going to eat anything I wanted and not look back. It worked well, but it was really hard the day after, because I still wanted all that stuff. I do my toughest workout on Thanksgiving. Christmas I take off--too busy, and I don't want to miss anything with my kids and family.
This year, I'm doing calorie staggering. So I already scheduled my days so that Christmas and Thanksgiving will be on my highest calorie day. But unlike my other high calorie days, I'm not going to keep track. It's my present to me.
I think giving yourself permission to indulge on one day prevents going too far overboard and "going off the wagon" for several days.
Carol F