If you feel that your self-esteem is high, you can't always save face, and you tend to get stage fright when there are many people, here are some suggestions to deal with the situation:
Self-acceptance: Learn to accept your own imperfections and weaknesses, everyone has his or her own strengths and weaknesses. Understand and accept your own uniqueness, this will alleviate the over-concern of being judged by others.
Positive Thinking: Cultivate a positive way of thinking by focusing on your strengths and accomplishments rather than overemphasizing your weaknesses. Give yourself positive feedback to boost your self-confidence.
Face your fears: Gradually face your fears and feelings of stage fright. Challenge yourself to go to social events, expand your relationships, and grow accustomed to the pressures of multi-person situations.
Deep Breathing and Relaxation: Try deep breathing and relaxation exercises when faced with stressful situations. Deep breathing can help relieve tension, relax your muscles, and make you feel calmer and more relaxed.
Self-expression training: Take some training courses or workshops to help you improve your expression and self-confidence. Practice speaking and expressing yourself in crowded situations, and gradually get used to and overcome your stage fright.
Seek support: Talk to close friends, family members or professionals to share your feelings and concerns. They can provide support, understanding and encouragement to help you gradually overcome your feelings of inferiority and stage fright.
Gradual challenge: Gradually face some social occasions and keep challenging your comfort zone. You can choose small-scale activities at first, and then gradually expand the scope to adapt to a crowded environment.
Keep in mind that these are some general suggestions, and that everyone's situation and ways of dealing with it may be different. If you feel the distress is severe or affecting your quality of life, it may be more beneficial to seek help from a professional counselor or therapist. They can offer more personalized support and guidance.