Winning a small race teaches you how winning feels. Then it stops being scary to want bigger ones.

Part of what makes a large ambition frightening is that you have no idea what succeeding is like, so imagination fills the gap with pressure and exposure. A small win answers the question cheaply. It turns out to be mostly ordinary, which is exactly the information that makes the next size up thinkable. Confidence gets built from evidence rather than from a decision.

Enter something small enough that you might actually win it: a club event, a local competition, a contest with few entries. Treat it as gathering information rather than collecting a trophy. Either way, notice what the day felt like.