As with being frightened of visiting the dentist, sometimes a doctor might agree to prescribe just 1 or 2 valium tablets, in a very mild dosage, but i agree with what the others've said. Try rescue remedy, and take a few deep breaths before going into the interview room, then exhale slowly. Walk in looking confident, even if you're shaking, give a nice smile - and if the worst comes to the worst - admit that you're a little nervous, because you so want to work at this place! Best of luck.