Were you working day shift? I just completed my 1st year of nursing on a busy med-surg (mostly surgical) unit, and we were required to rotate off-shift, as needed. Although it would have been difficult for me for a few reasons, I think I would have had a much less stressful 1st year if I'd just stayed on overnights the whole time. Not to say that it's "easy", but on my floor, there were less "moving parts", so to say, than on day shift. For instance, there were less meetings, less phone calls, less family visits, fewer medications to pass (on my unit), we didn't have to make sure our mobility-limited patients ambulated every 1-2 hrs, or were up in the chair for meals (which can take a lot of time if you get that patient cleaned up, and into a chair, and then they immediately have a bowel movement, so you have to move them back into bed to clean, then back into the chair).
Also, were you full-time? I started off 5 days, then went to 3, and I found that I not only had (obviously) less learning opportunities, but I had more time in-between re-performing newer skills. There were certain skills that I only performed once every few weeks (which may have been performed weekly, had I been working 5x/week).
I know there are a lot of people saying that skills alone doesn't make a "good nurse", but as novice nurse, stress surrounding skill performance might hinder all else. And without experience, we have to rely only our critical thinking (which can be a timely process if you have anxiety, and/or are not confident). Personally, before I was good at my basic nursing skills, each task took more time, added more anxiety, and can made me less confident. Once the skills were just muscle memory, I could multitask -- using my hands, while thinking critically.