Don't be tempted to get caught up in finding reasons things won't work, ok? I've found it to be a lot more useful to focus on what WILL work. (Or might) Sometimes we make this stuff worse in our own heads. If you're going to go, just try to control your activities. Consult with your daughter. Block out time to spend with just her & your son. Make sure you aren't staying in the same place as the relatives you want to avoid. Are there people who are coming who are ok? Spend as much time as you can with them. There are a million ways of saying "I'd love to chat but I have to go". It helps to have someone (your kids?) on your side to help keep things moving.