I remember a story about a Swedish manager accepting job applications for software developers in 2003. Typically permanent job postings would get hundreds of applicants back then.

In any case, this busy manager had 200 unread applications to evaluate. He had perhaps a day or two to do this in. The first thing the manager did was to grab half of the applications from the pile and remark, "you see these people. They are unlucky. And we don't want to hire unlucky people." And with this he threw these applications into the trash.

A lot about success is playing the numbers game and not freaking out/wasting time over rejection. Of course that is easier said than done.