Affirmations make you consciously cognizant of your thoughts. If you begin making conscious favorable thoughts, you, in reality, become more aware of the damaging thoughts that are constantly threatening to take over. It’s an interesting phenomenon, in truth. In reality, it proves true what your mother always cautioned: be careful of what you think as what you think is what you get. She was essentially telling you that you produce what you think about. When you’re not cognizant of your thoughts, they tend to be damaging. And not being aware of your thoughts tends to induce an awful spiral downward.