Find a doctor that can help you understand how to live with and cope with your anxiety issues without drugs if possible. Drugs like xanax are very potent and very addictive and should be the last thing you use, not the first, and should only be used for a very short period of time. Avoid like the plague any doctor that just wants to give you drugs. Find a psychologist, not a medical doctor, and not a psychiatrist unless the psychologist thinks you need the help a psychiatrist can give. Find a psychologist that deals with anxiety, they are the ones most qualified to help you.
Go to your local library and you will find some very good books on anxiety and panic attacks. They will teach you what causes it, and most importantly how to deal with it, live with it, overcome it, and what drugs to use if you need drugs at all. I have learned more from a few good library books than from all the doctors and councilors I have visited. There is a ton of highly effective self-help information available, and you can learn how to control panic attacks and anxiety.