God I hate interviews. I guess we're supposed to pretend we actually want to do the job, and are vaguely interested in their business. Which I'm not. I would have even less chance at interviews now than when I was young. I could pretend back then - especially if I'd had some Xanax.
I used to find them very nerve-wracking. Hopefully you'll be better at it than I was. Good luck and just do what a few of the people above said.