Confidence doesn't come from believing in yourself. It comes from having done the uncomfortable thing enough times that your nervous system stops flagging it as an emergency. Because nothing is actually hard, it's just unfamiliar. Difficulty is a perception your brain assigns to protect you from novelty, not an accurate measure of what you're capable of. Every time you post, pitch, or push through something that scares you, your brain updates its prediction model. Expansion stops being coded as danger.