Divert Your Attention
Try to shift your attention from yourself to the outside. When you are in a stressful environment, your attention is mainly centered on how your body acts. You may think you can control yourself better by paying close attention, but it turns out that's not the case. Paying too much attention to yourself makes it impossible for you to focus on what’s happening around you and causes you more anxiety. Only by concentrating on external things will you be less affected by nervousness. Focus on others, but not on what they think of you. You should try to establish a real connection with them.
Get Rid of Your Assumptions
Don't always assume that people will comment on you. Most people are mainly concerned with themselves and the things around them. They don't have time to observe your behavior. When people are socializing, everyone may say something out of place from time to time. What does it matter? People will forget it soon. You are the only one who indulges in embarrassing situation over and over again. There will always be untimely things happening in our lives, and it is no big deal. Please continue to be yourself and throw away unnecessary assumptions.
Do Something Good
Well-intentioned behavior can have a positive effect on your mood, allowing you to reduce your anxiety. In social situations, friendly and kind help will make you feel relaxed because you will receive gratitude and positive feedback from others. In the process of helping others, you can try to talk and get to know each other so that you don't feel particularly strange and nervous. A good way to reduce stress in social situations is to try to do something good for others.