Julia Galef, The Scout Mindset:
The “self-belief” model of motivation assumes that if you acknowledge the possibility of failure, then you’ll be too demoralized or afraid to take risks. In that model, people who believe that failure is unthinkable are the ones who try the hardest to succeed. Yet in practice, things often seem to work the other way around—accepting the possibility of failure in advance is liberating. It makes you bold, not timid. It’s what gives you the courage to take the risks required to achieve something big.
One of the most impactful ways I’ve adapted my thinking over the years, if only modestly successfully, has been to fear failure less and accept small downsides more easily. There’s way more world out there for those willing to trip or even fall now and then.