If you have been in the job market and not have much success I know it can bring you down. It is so important to keep a positive attitude. You need to go into each interview with a positive attitude. Even if you did not get the job think about what you learned from the interview. Spin a negative situation into a positive one. When you change your attitude, people will notice and you will land the job you were meant to have.
Check out this article on negativity by Doug Lawrence. http://talentc.ca/index.php/2012/negativity-and-its-impact/ . Once you land the perfect job, remember to keep your attitude positive!