Welcome. I was in your shoes a year ago

.
Prepare to be overwhelmed, but you'll get through.
I asked the manager the same question you're asking us and she told me to focus on passing the NCLEX and get an early test date. Good advice, because it's a lot easier to focus on learning NICU things with the NCLEX not hanging over your head. The new grads who had a later testing date really did have a harder time.
You should get a pretty intensive orientation. One thing you could ask about is what certifications you'll need. We did NRP, STABLE, etc. and it might be useful to own those books before orientation so you can write directly in them.
Also, if you have some time off between school and your new job, enjoy it

. Spend time with your family.
The following member says Thank You: