Evening shift versus day shift

I was lucky to land a job that didn't require night shift, since it is near impossible for me to sleep in the day. I am now finding that the rotation between day and evening is difficult as well because my body gets used to staying up late and doesn't really adjust back to days for at least 1 week. So for one week, it feels terrible to only be getting like 5 hours of sleep a night. Plus day shift is so crazy busy, I feel exhausted after work. Evenings are great for sleep, but they tend to be a little slower and the shift seems to drag sometimes. My main concern though is that I may be getting better experience on days because of the crazy pace and eventually want to work in the ER. I am still a newbie, only having about 6 months on a challenging floor (I work on a telemetry/step down unit). The sleep thing is an issue though. I like to get at least 7 to 8 hours and as I said before only get about 5 on days. If I went to straight evenings, do you think it would be possible for a new nurse to get the experience necessary to learn priority setting and other skills that will allow me to transition some day to the ER? I'm also considering asking for mostly evenings and 1 week of days. Do you think that is enough?