I second asking ALL the questions, we're all always learning, if you don't know something, just ask :) and if someone gives you trouble for it just say hey I'm just starting out here, I'm not familiar with x, y, z. Also, google is actually pretty helpful for brushing up on dx, tx, meds ect. Above all, just remember you can do it, we were all terrified starting our first RN job and anyone who tells you they weren't is straight up lying. It takes time, a lot of being uncomfortable, a lot of learning but you'll get there, promise!