Through evaluation from start to causative factors needed to reach to a conclusion and diagnosing your problem. Beta blocker is part of the medication but a proper diagnosis should be made.

You needs both drug therapy and cognitive behavioral therapy. Consult Psychiatrist.

What you are experiencing is an anxiety disorder. This  condition requires a detailed assessment by a Psychiatrist . Once the diagnosis is confirmed, treatment includes medications and therapy . Beta blocker is only a symptomatic treatment but not for all the symptoms. You will require different set of medications. Psychiatrist will be able to help you .