Here are the 7 Cardinal Sins of Mindset in Tennis
1. Indifference/Apathy – There’s no room for these doubtful feelings if you want to develop your skills and improve your performance. Always put in 110%. 2. Stubbornness – Being stubborn means your aren’t coachable. Being uncoachable probably will make you unsuccessful. However, being open-minded might expose a new skill or technique that you would’ve otherwise…