Social Anxiety is a common problem these days because of the lifestyle we are living in. We are so involved in our work that we get very less time interacting with our loved ones and other people which leads to social anxiety.
Thinking in a negative way has also proved to be the cause of these problem. So think positive and believe in yourself in whatever you do. Indulge yourself in some discussions, dancing and interacting with people.
All these can help you in coping with social anxiety problem.