In addition to the excellent suggestions above, you may want to check out Sales Leap, since we are essentially selling ourselves in job interviews.
A bit of a radical idea is to listen to Prosperity, to remember that you'll have plenty of money and everything else you want, whether from this job or something else, so you'll feel less stress about this particular job.
Sonic Access, if you have it, would be terrific.
Best of luck getting the job -- or something even better!
