+1 on the vistaril.
also clonidine, an alpha-blocker usually for blood pressure but it also used for nervousness and some sorts of anxiety off-label.
I had switched to Vistaril and clonidine from clonazepam back a while ago.. not on them anymore but I swear (for me) those two combined were better for their purpose (calming down, helping insomnia, relieving anxiety) than clonazepam, plus you wouldn't be on a benzo which when used long term can cause bad wd's as you all know.
Just my .02 from experience.
(BTW they are both presciption, but most Dr's have no problem with prescribing those as there is no stigma attached like with benzos eg. abusable, addictive, divertable etc.)