Any time I have gotten aggravated with my partner, my opponents or even the way that I'm playing - it has damaged my game. As I get angry or stressed out - I get "heady" and my muscles tighten up. My mind is thinking negative thoughts and my body responds by poor footwork and follow through.
A key part of playing well is having mental peace. There is a clarity that comes with happiness - a "flow". Not to mention that it's BETTER FOR YOUR LONG TERM HEALTH TOO!
Also - who wants to play with a grouchy partner? This is our HOBBY!!! Learn to exercise your mind to be the master of it. For tips on the reversal of negative thinking buy yourself my book "I ❤️ MY DOUBLES PARTNER!!!" available on Amazon!