Congratulations on your dream nursing job! I started my NICU residency in May 2016, and have been on my own for about 6 months now. Everything the previous commenters have said is absolutely true - best way to learn is to ask questions! One thing I wished I had paid more attention to / overheard more often during residency was the teaching that the other nurses did with the parents; I often stumble over my explanations, but after hearing another nurse explain it, I remember it better. Plus, you learn so much by listening to more experienced nurses! Oh, and reviewing what to do when a baby desats/bradys (NRP) is a good idea if you have any anxiety (like me).
The kiddos are so precious, and even though the job will drive you insane sometimes, it is totally worth it!
P.S. - I hope this post makes sense. I just got home from a night shift in the NICU, and should really get some sleep :)