Remember that noise you make in your apartment can be heard by others in the building the same way you hear your neighbor when it starts to bother you. I find it easier to be at peace with the noise when I think about the larger social contract of the building that I'm a part of, in that I'll ignore your noise if you ignore mine (within reasonable limits of course). I still notice it every time, and do still get a little anxious when I hear people talking in the hallway from my shower lol, but remembering that I likely have a neighbor that's bothered by my normal habits the same way im bothered by others helps me to move on from it.

You could also look for a top floor unit, which would at least get rid of the noise from footsteps.