To stop feeling not good enough and heal your self-worth, start by acknowledging your feelings without judgment. Challenge negative thoughts by questioning their validity and practice self-compassion by treating yourself with kindness. Focus on your strengths by listing your positive qualities and setting realistic, achievable goals to reinforce your sense of competence. Surround yourself with supportive people, engage in activities you enjoy, and maintain a gratitude journal to shift your mindset. If feelings persist, consider seeking professional help, and remember to be patient with yourself as healing takes time. You are inherently valuable and deserving of self-acceptance.