I get really nervous, awkward and can't talk to people i don't know and sometimes start physically shaking. do i have social anxiety, can i stop it?

I can't diagnose: You with this information. But a psychologist or a psychiatrist can take a thorough history and provide you with an accurate diagnosis as well as good options to deal with these symptoms. Take care.

Therapy will help: Social phobias and anxiety disorders can be related to low self esteem, paranoid ideation or social discomfort. This disorder can be treated with psychotherapy or psychotropic medications or both. My suggestion is to try psychotherapy first and use drugs as the last resort. Therapies useful for this disorder can include; systematic desensitization, cognitive restructuring, relaxation techniques.