((((((((Elana)))))))))))

Oh my goodness, the EXACT same thing happens to me. It's SO draining. My mother can be like yours -- she's very ... expressive when she's angry, and I always feel like I need to "fix" it in order to calm her down, even when whatever's going on is not my fault. That translates into my relationships with other people, putting me on edge just because others are on edge, etc. I suppose we are overly empathetic that way, and I know how difficult that can be.

What helps for me is to try to get away. Not far, maybe just out of the room. Putting a physical barrier between myself and the other person helps me separate myself from their mood. Maybe you can excuse yourself from the room for a few minutes, go to your own room and listen to a song you particularly enjoy, or take a few deep breaths to calm yourself down.

Good luck with everything. Take care of yourself; I hope that you can enjoy your vacation despite all this.