Have a growth mindset by believing that you can grow, learn new things, improve your skills and knowledge, and realizing that temporary and recurring failure are a necessary part of learning and growing.
Dweck, like many adults, had learned to hide her frustration and anger, to politely say "I'm not sure I want to play this anymore" instead of knocking over the board. She figured the successful kids would be the same - they’d have tactics for coping with failure instead of getting beaten down by it. But what she found was radically different. The successful kids didn’t just live with failure, they loved it! When the going got tough, they didn’t start blaming themselves; they licked their lips and said "I love a challenge." They’d say stuff like "The harder it gets the harder I need to try."