Your self-concept is a collection of the perceptions you have about yourself. What you think about yourself informs who you believe yourself to be. Confidence and self-confidence are all based on what you tell yourself repeatedly. Our self-talk if not steered toward the positive can lead us to a negative self-image, lots of anxiety and lack of belief in ourselves.
The Self-Talk Jar is a tool you can use to shift and change your self-talk.
Here's the handout to help you make your own Self-Talk Jar.