[squirlkeeperCCRN]

I agree that going from one's comfort zone to a new, overwhelming, very busy ICU can be very un-nerving. I think new critical care nurses need to allow themselves a year before they get critical of themselves or question the move they made. Take evey opportunity to learn when ever you can and eventually everything will start to click.
Good luck to all of you, (and to me who will be retesting and needs to re-remember everything I once knew for my CCRN).