Then that has a positive influence on your self-confidence.
Did your parents give you a strong personality? Then that has a positive influence on your self-confidence. Have you been laughed at once during a presentation at school? Then that affects your self-esteem. Sometimes this happens structurally – for example in bullying. Avoidance can then occur: you then avoid situations in your work or in your social life in order not to be exposed to that bad feeling again.