Just so you know... my neighbor has a dog and she never walks it. She opens her front door to let the thing out front for a pee, and thats it. Dog seems pretty happy. It's doing a lot better in stuck in that house vs. being put down by the shelter. The dog's a death row rescue. If you get a smaller dog you could make it work with minimal walking. I give my neighbor grief for not walking it more often... but the truth of the matter is she treats that thing well, and loves it, and that's about all a dog can ask for.
I swear I'm not trying to talk you into a pet or anything. I just know how much happiness my pets add to my life, and I know my mom never had pets her whole life till a few years ago, she got 1 cat, and she says she can't even imagine what life was like before. I would just hate for you to miss out on something/ someone that could make you super happy. And it's great, because while the little critter makes you happy, you can make it happy. Just add food and water lol.
I about fainted when I saw your multiquote. Nice.