How can someone effectively shift their mindset from harmful self-doubt to healthy self-doubt in order to promote personal growth and success?

To shift from harmful self-doubt to healthy self-doubt, one can start by acknowledging their negative thoughts and challenging them with evidence of their past successes. It is important to practice self-compassion and remind oneself that making mistakes is a natural part of learning and growth. Setting realistic goals and seeking support from others can also help in building confidence and shifting towards a more positive mindset. By focusing on self-improvement rather than self-criticism, one can foster a healthier sense of self-doubt that motivates personal growth and success.