Rejected again? You just got a free data point. Annoying, but free.

A no carries information and costs nothing to collect. It narrows the field, says something about what that place wanted, and occasionally comes with an actual reason attached. None of that makes it pleasant, and pretending otherwise is the fastest way to stop believing anything you tell yourself.

Let it be annoying, then spend five minutes asking what the no actually told you. If there is no information in it, write that down too, because that is also a finding. Then send the next one, since one data point is not much of a sample.