Hi StarGirl, Let me start by saying that I am VERY familiar with the feelings that you are having right now. I've been in the ER for about 3 months. I graduated last May and did a five month intern on other floors before settling in the ER. I think back to my first days there and remember thinking "will I EVER be able to do this on my own???" Everything was so new and fast!
Hang in there!! I've been off of orientation for a couple of weeks now and I have good days and bad days. I know I have a lot to learn! One of the seasoned nurses that I work with, and respect very much, said that it took her 2 years to feel comfortable in the ER and 5 before she felt really confident. That was encouraging for me to hear! StarGirl, you are not expected to know everything right now! Give yourself a break and remember that "it" will come with time.
Don't be afraid to ask questions! How is your preceptor? Do you feel comfortable talking to them? (like asking questions and getting feedback on how you are progressing) If not then maybe there is someone else you could work with. I think that having a good preceptor is key.
Feel free to PM me! I've felt the same way you are feeling and it DOES get better. I wish you the best and I hope that you come to love the ED!