sillygirl is right. popping xanax all day is NOT the answer to your problem.
Yes it's great for the symptoms and helpping you cope and you should continue with that and forget about stopping until you are well and stable for a good amount of time.
Try to get to the reason for your anxiety and work on that. New meds and treatment are the answer...see a good psychiatrist to get you on ther right track.
Take care
A change of anti anxiety med is in order.
Xanax is the very best med for stopping panic, and any other anxiety episodes that hit suddenly. It doesn't stay in system for long, so yes you could be having withdrawal each day in between doses, or if you skip a dose. Not a pleasant place to be.
Until you commit to a new regime of meds, and therapy, I don't see your situation changing.
So go for it: no more questions about days filled with anxiety attacks. Focus on a different approach to problem. Good luck.