The path is to become stronger and more competent. Physically, mentally, emotionally. When you're physically stronger, you have less anxiety around people, hence the speech is better. When you know your expertise, you have less anxiety. When you emotionally stable, you don't have that negative self-talk, you let it pass it through you, and then try again. So, go lift. Go meditate, and go armor yourself with knowledge that gives you the edge over others.