If you have ever had a furious interaction with someone, you are rarely at peace after the interaction has ended. It sometimes takes days and weeks before you are at peace. God expects that if you have a furious interaction, you will resolve it before the conversation has ended.
You cannot continue the course of negative thinking for days and weeks. Nor can you engage in hateful emotional responses. The Lord God Almighty is a God of love, a God of peace, and a God of rectification. The Lord God Almighty is El Shaddai.