I was physically ill most of the time as a new grad in med/surg. What helped me was to make friends anywhere I could. Let the RTs, CNAs, senior nurses, etc. know how much you appreciate them. Always ask for help or clarification when you're unsure about anything...even if you're only a little bit unsure.
You'll learn to organize and re-organize as time goes on. You'll also run into fewer things that are completely new to you and get better at navigating around those constant bumps in the road.
You can do this. Your confidence just needs time to grow.