I'm not a doctor, but from experience, Xanax is addictive if taken regularly. But this need not be a problem. If you are taking it under a doctor's care, you will be fine. Don't increase or decrease the dose without speaking to your doctor. Also, never go off one of these drugs without help. You must follow a doctor's advice to do it safely.
I think if Xanax is helping, then continue taking it. If you're going to need something long term, perhaps your doctor can suggest an anti-depressant. I take Ativan and that is addictive, also. With a doctor's care, you'll be fine on the Xanax.
Anxiety Disorder/Mitral Valve Prolapse
Prozac, Toprol 100 mg and occasionally Ativan