I give myself permission to feel confident in my abilities.

Most people wait for an outside signal that never comes. A certificate, a promotion, someone senior saying plainly that you are good at this. Organisations that would issue such a thing largely don't, and the ones that do issue it years late.

Meanwhile the evidence piles up elsewhere. Someone junior asks you a question and you answer without checking. That's data.

Permission granted internally feels flimsy next to the version you were waiting for. It is also the only one on offer, and people who take it early get years of useful work out of it that the waiters never get.