I am a former musician with Capital records, When I was young I was used to being in front of an audience. I had a battle with cancer 5 years ago, everything has changed, I'm 68, & I take Xanax 05. mg for panic attacks, when I'm around groups of people I get very tense & even shake at times, I even have to gasp for air. What can I do? Should I up the amount of Xanax, my friend has a similar problem with nerves, he takes 25 mg of valium. He's a lead guitar player, he say's says it works for him. Please I need help!