I'm not going to give you the "new grads work med-surg nights for a year" line, but going from complete fresh new grad with no other med background(i.e. medic to RN) into an ICU or equivalent is reckless staffing by a facility. Get a job on a tele floor, if you're capable(which you sound like you are very determined to be) you can quickly get a solid base knowledge to move into step down units. Critical care managers love experienced nurses but not set in their own ways.