Try to full power off and leave it for 5 minutes like ChikeD said.
If that doesn't work use another pc or try to install drivers again.
Don't you have a previous nandroid backup?
I'm not sure but I think you can use adb or mount use storage via otg cable in cwm.
Finally if all fails (proceed with caution and let someone confirm it) fastboot nemesis kernel, preform wipes mount, data etc whatever is required and then flash the rom.
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