What do Habakkuk and Israel have? Nothing but the word of God. Nothing but the promise of God. Nothing but God himself. They have the vision that Yahweh gives, the words of hope he utters. And that, amazingly, is enough.
If affairs always begin by believing lies, then repentance always begins by believing the truth: the truth that you are in the wrong, the truth that you have a God who loves you in Jesus Christ, and the truth that he and he alone can save you not only from adultery but from every sin that seeks to lead you down the path of destruction.
We see someone driving a fancy car, owning a big home, having healthy children and an attractive spouse. Instantly, almost without a second's thought, we assume they are successful. Life is good for them.