Sleepie, I hope you're getting off the Xanax with medical support and direction. It can be tricky. Can you do breathing exercises? Sounds silly, I know but when I'm anxious I tend to hold my breath. Try this. Breathe in through your nose slowly to the count of four. Hold for the slow count of five. Blow out slowly through the mouth slowly to the slow count of eight. This helps me take the edge of the worst of it.
Avoid caffeine. Try to stay focused on soothing things. Have you listened to the "pink noise" ? You can find it on you tube.
Love from Lenina