It'll be the easiest job you've ever had (barring commuting issues) if you let it. Be a sponge, smile a lot, make your Captain's job easy, and don't do anyone else's job but yours.

As a Corp guy that last part might be the hardest. You are no longer a generalist with responsibility for everything, but a specialist with a narrow scope of action. The sooner you grasp that idea the better your life (and more importantly, your stress) will be.