Being rejected by people who don’t know you is a strange reason to reject yourself.

Rejection from people who never learned anything about you is thin evidence. They turned down an impression, a first ten minutes, whatever they guessed from outside, and then you took that guess and adopted it as a ruling. It stings anyway, and the sting is not a character flaw. It is only worth noticing how little was behind the verdict you accepted.

Separate what happened from what you concluded about yourself. State the facts plainly, that they did not include you, and stop there. Then go where you are already known, because people with actual information tend to reach a different conclusion.