I understand how you feel, Cary. I've been living in my current building for 13 years. It's a 6 unit building that was built in the early 1920's. The floors are creaky and the walls are kinda thin so you can hear conversations of people standing in the hallways. So that kind of makes me self-conscious about dressing up sometimes. And worse I live on the 3rd floor and I have to make sure I'm walking very quietly, especially in the evenings. And I make sure the entire floor is carpeted. I even put a temporary strip of carpet in the kitchen so I can walk in heels without disturbing anyone. Just hang in there and try to insulate yourself against the outside world (neighbors) as much as you can. And if someone knocks, I just call out: I'm not decent! Can you come back later? It actually works!
-Audrey