We aren't called to fight for our rights. We're called to fight for what's right.

Learn to do good, seek justice, correct oppression; bring justice to the fatherless, plead the widow’s cause. - Isaiah 1:17

As we have opportunity, let us do good to everyone, and especially to those who are of the household of faith. -  Galatians 6:10

You don't have to stop thinking about bad things. You just need to start filling your mind with good things.