When your computer is not responding, you have to refresh it by turning it off and turning it back on again. This usually works. Your mind works like a computer.
Sometimes you just need to unplug your mind and get a fresh start. My enemy cannot read your mind, but he can send untruthful, negative thoughts to your mind. If you express those thoughts verbally, you can say things that you wished you had not said.
Words can edify or tear down. When you are overwhelmed with negative thoughts about someone or some circumstance, it is time to refresh your mind by staying your mind on Me. Take those negative thoughts captive and give them to Me. Then I will be able to bring peace to your mind once again.
ISAIAH 26:3; 2 CORINTHIANS 10:5