The prophets Isaiah, Micah, and Amos gave warning to the people of Israel for the purpose of producing genuine heart change. God is still working to lead people to repentance today!
God's solution to your problem might not be what you thought it would be or expected. It wasn't for Naaman in 2 Kings 5.
Learn from 2 Chronicles 5-7 why the Temple was the place where God honored the prayers of His people when they turned to Him with their whole heart.