Ok, sorry, I tried to highlight the second part of your post ("I'm also struggling with the whole 'second best' thing.") but apparently I posted the whole thing.
What I wanted to chime in about this was that I too struggled with this feeling for over a month while being waitlisted at 4 schools. Of course my confidence took a shot and I wasn't shy about telling my boss, relatives, and friends that I was seriously beginning to doubt my abilities.
However, when I thought back at my non-traditional route to this point (my PhD will be in a field completely different from my first Bachelor's degree), I commended myself for having even gotten this far.
The most striking thing about this whole process is how arbitrary it can be at times. Luckily I had people who were more than open in describing their experiences, so I knew it wasn't only happening to me.
The way I see it, just to get an interview is an honor because so many factors beyond our control can influence how the chips fall. As much as people want to think everything is cut and dry, it is simply not that way.
Just my two cents. Nobody on here should doubt themselves because it takes a lot of commitment and hard work just to apply, never mind interviewing and waiting patiently.
I just wanted to chime in that I also received an acceptance in the past few days. Do not give up hope. I know it is easy to say and I've been suffering for the past 3 weeks but it was all totally worth it.
It has been YEARS since I've waited for the mailman, but Tom and I are now on a first name basis. He should be here in 3 hours...hopefully with some news.