RL Advice?

Hi guys, so I got a call today that I would go in for two interviews on Tuesday for a summer internship. Its not my dream job because its more the business side of a healthcare and medical equipment firm, and they haven't done anything new in years. Even so, what tips do you have when going to a job interview?

I have to call to confirm tomorrow because I feel like someone steamed my head up and I feel and sound horrible. I am never, ever, ever going to sleep with wet hair late at night ever, ever, ever again. I can't go out at weekends because I've been getting sick in the late afternoon after doing stuff consecutively. I don't have time to be sick. ;__;

Anyways, since I have a headache I'm listening to soothing songs by DJ Okawari, who is a genius.