Read the Travis McGee books by John D McDonald. (They're older, but Travis lived on a houseboat in Ft. Lauderdale, and the books have all sorts of information about what it's like.)
Yes, I've lived on a boat.
There isn't very much room, so you can't have much stuff. The humidity will get into your electronics, your clothes and all of your boat's infra-structure, and if your boat is in salt water, it's twice as bad. Something needs cleaning and/or repair constantly. It's extra cold in the winter, because of the humidity, even in Ft. Lauderdale. All your friends and complete strangers expect you to put them up all the time. Your next door neighbor is six feet away, and you and they can hear everything (including television, radio and stereo you're not the least interested in).
The moon rise and sunrise are extra-special, though, and I like to fish. I never need a hotel room when I travel, and I never get where I'm going and find I've forgotten to pack something.