how to speak in public without fear

You can manage public speaking fear by preparing thoroughly, shifting your focus from yourself to the audience, and using techniques like deep breathing and repeated, structured practice.

Prepare and Practice Effectively. Deeply understand your material so you can speak naturally rather than relying on memorization. Practice out loud, ideally in conditions that simulate your actual performance, to build fluency and confidence.
Shift Your Focus to the Audience. Anxiety often stems from self-monitoring. Shift your attention outward by focusing on the value you are providing to the audience. Remember that they are rooting for your success, not waiting for you to fail.
Regulate Your Nervous System. Use diaphragmatic breathing before and during your talk to activate your parasympathetic nervous system, which helps lower your heart rate and calm your physical stress response.
Use Gradual Exposure. Gradually expose yourself to speaking in front of others, starting with small, low-stakes groups. This helps your brain learn that the feared outcome—such as judgment or failure—does not actually occur.