[perdunov]

My takeaway from being both an interviewee and an interviewer is that the most correct attitude after a failed job interview is "We don't match each other".

The interviewer is testing their own ability to properly conduct a job interview as much as they're testing the candidate. I realized it when I was interviewing candidates myself.

Also, people and companies are drastically, surprisingly and ridiculously different. You may fail badly at one interview, and it means nothing, you can just move on to the next company and prosper.