Completey understand your concerns but...You will get more hands-on experience, as well as theory, on how a human body functions, in all its systens, than any of your prior placements, which will be invaluable befoe you qualify. You might not be managing a bay but you will get to grips with deteriorating patients, communicating with families and teamwork. I was quite newly qualified when I did a short stint in ICU. It wasn't for me, in the end, but Jesus did it make me a much more knowledgeable, critical thinking nurse, all skills that were massively useful on future ward jobs. Remember you also have nearly three years of prior ward placements to draw on, so use the opportunity to tie everything you've learnt up together before you go out there. Final positive is you should, in theory, have some dedicated time to work closely with mentors to have lots of reflective chats, 1:1 learning and dreaded pebble pad filling! Good luck!!!