What is an affirmation? An affirmation is a statement or question that you tell yourself all the time; it can be positive and negative. When you tell yourself something, often enough you will begin to believe it's true. Teens everywhere tell themselves positive and negative affirmations every day. As a teen, it is so important to get into the daily habit of telling yourself positive affirmations. This episode dives deep into why teens speak negatively about themselves and the reason to have positive self-talk.