SENSE & SENSITIVITY DEAR HARRIETTE: I am going on vacation at Christmastime this year. I usually go to visit my family, but my mother passed away a few months ago, and there is no family home to visit. I feel a bit lost right now, given that both of my parents are gone, which is why I scheduled this trip. It’s a cruise, and I’m going by myself. I am an only child, and I don’t have close friends. …