The fact that you are worried is a good thing. Observe how others do things, how they work, tricks they use, then adopt or adapt them to work for you. I was an extern in a MSICU for my last 2 years of school and now I am a GRAD RN. (Still working through the "imposter" feelings). Everyone does things differently, some things work well, others do not. You will figure out your own style. Good luck to you, the work is hard but the rewards are great, and the sorrows are heartbreaking, but when you help a family get through those "times", its worth it all!