Perfetti con la pratica. Le 42 regole per prepararsi a migliorare

I'm curious about the process behind selecting these specific principles. Were they based on personal experience, research, or a mix of both?

Some rules really resonated with me, while others felt less relevant. Which rules stood out as most impactful in daily life or work?

Applying these principles consistently can be tough. I wonder what mental or emotional changes help sustain practice and improvement.