A job interview gives you the opportunity to win the job offer. Your resume got you in the door, but it's the interview that makes or breaks your chances of moving forward. It's natural to be anxious about a job interview, but excessive anxiety can compromise your performance and knock you out of the running. The best way to control this is through sufficient preparation and practice. There is no such thing as over-preparation when it comes to an interview. Take sufficient time in advance to research the company and be able to articulate how your specific experience suits the requirements of the role. Chances are you'll also be asked questions that probe how you behave in certain scenarios you are likely to encounter on the job. Your responses will be much more effective if you can anticipate the questions and prepare them in advance of being asked. When it comes to performing well in an interview, "winging it" won't do.