Hi.Your symptoms show that you are having social anxiety.
You should be proud of yourself for sharing your problem and seeking help.
You don't have to feel sad for your problem.With medications,psychotherapy,and self care are the main treatment programs.
Get help and support from parents and family.
Next Steps
Consult a psychologist for psychotherapy.If the symptoms are severe and impairing the normal life you should consult a psychiatrist.
Health Tips
Learning relaxation techniques, eating healthy, mindfulness meditation,etc will help you in reducing symptoms.
Believe in yourself.