I play a college sport, and our coach pushed our team to adopt this exact mindset this past year. It completely changed our team culture and performance. Cold w

I play a college sport, and our coach pushed our team to adopt this exact mindset this past year. It completely changed our team culture and performance. Cold weather, injuries, lack of facilities, etc. previously served as excuses for why we weren't achieving our goals. Once we started focusing on the controllables and working around our challenges rather than hiding behind them, our performance drastically improved. We also started enjoying our training and time together much more. I think people who just "get things done" are ones that possess this mindset, whether they know it or not. Instead of "I couldn't do X because of Y," they tend to say "I originally couldn't do X because of Y, but by doing Z I was able to make significant progress regardless."