I really like this link to help with guided breathing when I'm really agitated:
https://31.media.tumblr.com/b1406ea4...v5xlo1_500.gif

Can you take your Clozaril now and let it help you sleep? It sounds like you are physically fighting the symptoms from your brain; maybe you need to just let your brain fight it out while you try to take a break from it for a little bit. If you find you can't settle you can always get back up and work some more.