Courage looks smaller than advertised. It's a cursor in a message box, a send button, and about four seconds of not thinking too hard.
Nobody feels brave in those seconds. You feel slightly sick, then it's done, and within a week the whole thing is unremarkable.
That's the real shape of it — not one grand leap but a series of small, survivable exposures. Find today's four-second version. It's probably a message you've been drafting in your head for a while now.