Rather than relying on coaches or teammates for reassurance, the Olympic drag flicker Warriner introduces here built her own evidence. She tracked her corner percentages on a grid, did 50 drag flicks three or four times a week, then kept the printed spreadsheets by her bed at the Games. Confidence, in her words, comes from the work you have done before, not from other people telling you how good you are. Watch the full masterclass: Confidence: a choice and a skill.