Oh, I totally understand what you mean.
My mom's the same way, but just with cleaning. She's the one taking a week off, and my dad isn't, and I've come to realize that I only have 3-4 possible days just to myself for the whole 2 and a half weeks. It pretty much sucks, I know. :[ There's not much advice I can give you on this, I'm sorry. I just try to cope with it, vent and rant to my friends, or even my diary or something. If you aren't already, maybe get into writing. It helps get everything out. :]
Of course, you've probably heard the whole "family comes first" bit, but when you need a break from family, friends are there to help you, and that's when friends are your family. It really hurt me when my friend told me that, but when there's nothing to look foreward to, you can always look foreward to friends. :]
If you need anyone to talk to, just PM me, 'kay?