New Grad ER nurse

I am in a new grad ER program. I have 3 more weeks until I practice as an ER nurse independently. ER was not my first choice, but I fell in love with the ER pace and environment. My round 1 precepts wasn’t good, but my current round 2 preceptor is great. The round 2 preceptor said that she will help build routine. When the pace is slow I am fine, but when it’s fast with patient in and out, I loose focus..I get behind and slow. I know I can do this…what are your thoughts on new grad ER making through and succeeding ?