Very good point about it not being about you. I didn't really understand that until I was on the other side and doing some hiring. Sometimes we'd have no qualified applicants for months (like, we had a junior dev position and got people applying that knew nothing about code), and other times we'd have 10+ applicants that were perfect and we wanted to take all of them.

I used to think if I didn't get a job it was on me. Turns out it's a numbers game (assuming you're not applying for something like a junior dev position with only cust service experience).