Finally landed a job! however...

I'm extremely grateful that I finally got a job lol... I am going to be a float in a pediatric hospital which sounds so awesome because I will get to experience all different types of units and patient populations. Peds is what I really wanted and I'm fortunate that I was able to get what I wanted however..... I am pretty nervous. I kind of feel like I should start studying, but I have no idea where to start because it's a float position (yes, I am a new grad ). Panic has set in...any advice?

-amms!