No matter how desperately you want the job, remember that it’s just an opportunity. Your entire future is not dependent on landing this particular job.

From the interviewer’s point of view: Enthusiasm is good, neediness can be a bit awkward. 

No matter what happens, this interview will be a learning experience that will make you a better job candidate and savvier professional in the long run.

• Power Posing - Pose like a superhero for two minutes before your interview.
• Visualization - Picture yourself in the interview room making a fantastic impression.
• Box-Breathing - Effective breathing exercise which can be done in seconds no matter where you are and does wonders for calming anxiety.
• Pacing Yourself - Don’t feel self-conscious about pausing. Interviewers expect you to pause and think before answering complex questions.
• Redirect Questions - Redirect the question toward a similar topic you are familiar with, preferably underlining your strengths as you do it.