Have confidence when going on that 1st, 2nd or 3rd interview. Know what's going to be asked before you are asked. Make sure your resume has the proper information that will stand out among all others.
I have been on both sides of over 100 interviews for over 25 years and there are certain things which haven't changed. If you are ready for the interview, you will know with about 95% confidence if you are the top candidate.