Hello and congratulations!!
The ED is a unique and gratifying place to work. HOWEVER (you saw that comin', right?), it's not always about the codes and the trauma's. ER is chaos. But in the chaos, you find you have the peer group to weather any storm. It's a camaraderie like nothing else.
I've been doing this gig since 1999. *sigh* My feet hurt, I get mentally exhausted, but cannot imagine working in any other area. To be a good ER nurse, you have to be good at anticipating needs , know what the next step is, and be able to the nitty-gritty of what is going on with the patient in the first place. And never lose your "nice".
I will say that over the years, I have seen the expectations placed on ED nurses increase. We carry heavy loads. People are sicker, hospitals are full, and ER physicians rely on us to order the correct protocols to get the ball rolling. ED throughput and Medication Reconcilliation are big buzzwords these days, and have been for almost 10years now. Seems like we have to do more work for the floors too.
For a new grad, it can be overwhelming, and perhaps not the best place to start. But it sounds like you went through a decent program. Expect that there will be horrible days, awesome days, and apocolyptic days. It's the ED, anything can happen..... and it usually does.