Hi and welcome to Cruisemates. As a fellow tea drinker, let me address the tea issue first. You cannot bring a kettle, as that would be a major fire hazard. On some ships, some cabins, like mini suites, do have an appliance, like a hot shot, for in cabin tea/coffee. I had one on NCL. If you bring anything like a kettle, or appliance, it will be confiscated.
Make sure you pay attention when they have the muster drill. The crew will explain exactly what you need to do, and, where you need to go, if by chance there is an emergency at sea.I don't swim either,and, although I look good in orange, I keep the life jacket in the closet
I have not sailed Cunard, but, I am sure other people who have, will jump in with answers...Any more questions, just yell
We are here to help, whenever you need us....