A rejection email is a timestamp, not a verdict. It only tells you where you were that day.

A refusal records one set of criteria meeting one version of you on one day. It says nothing about the next set of criteria, or about the version of you six months from now with different work behind you. People generalise a single no into a statement about their worth because it arrives in a form that feels official.

Read it for anything specific and usable, then let the rest go. Keep a record of what you applied for, so you can see the pattern instead of the instance. Where you were that day is not where you stay.