Speaking confidently in public with high self-esteem is a skill that can be learned and practiced. It involves believing in yourself and your abilities, preparing thoroughly, and projecting confidence through your body language and tone of voice. Techniques such as deep breathing, positive self-talk, and visualization can help boost your self-esteem and calm your nerves before speaking. Additionally, practicing your speech multiple times and getting feedback from others can help you feel more prepared and confident. Remember that everyone gets nervous before speaking in public, but with practice and proper preparation, you can overcome your fears and speak confidently.