My best advice for starting a new job is along the lines of "fake it 'til you make it." Pretend that you are someone who knows exactly what she's doing--I generally went with C.J. Cregg in my personal imagination--and it'll work out fine. You seem pretty smart and together, so I'm pretty sure that you won't have to pretend too hard. Remember: they hired you, so that means they already like you!

I like songs! If you feel so moved, upload me a random song. Something energizing.