Choose; what you fight for wisely.
I once asked a very successful woman to share her secret with me. She smiled and said to me. "I started succeeding when I started leaving small fights for small fighters. I stopped fighting those who gossiped about me. I stopped fighting with my in-laws. I stopped fighting for attention... I stopped fighting to meet people's expectations of me. I stopped fighting for my rights with inconsiderate people. I stopped fighting to please everyone. I stopped fighting to prove they were wrong about me.