If you are needing to take Xanax five times a day, perhaps you should ask your doctor about a longer acting benzo. Xanax only lasts for about four hours and if you're still having anxiety, it could rebound quickly. Ask about Klonopin or Valium. Also, if you've tried all the SSRI's and they don't work, maybe you could try an older tricyclic AD like Elavil. They have a more sedating effect which might be good for someone needing more sedation like you. The only other thing I could suggest is trying therapy to help you not be so hard on yourself.