Ken Sande, in his book, The Peacemaker, suggests this step in the process of determining which issues are worth fighting over. Note the focus on prayer, and ask God to take away any anxieties you may have.
“[I will] Change my attitude by rejoicing in the Lord and remembering how much he has forgiven me, being gentle toward others, replacing anxiety with prayer and trust, deliberately thinking about what is good and right in others, and putting into practice what God has taught me through the Bible.”
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Ken Sande, The Peacemaker. Baker Publishing Group. Kindle Edition. Bold font added