NR isn't the red eyed, long clawed, sharp tooth monster so many make it out to be.
If you think you "can't", then why are you even doing this.
It takes a certain personality or ER staff and other EMS crews will eat you alive. Then the patients will get rough with you. It is rewarding and worth all the effort, but you need to be confident in yourself.
Either way, you should have the same knowledge. Good luck with your class.