Every interview is a lottery.
Depending on the industry, company type and who interviews you - on one day you would need to impress with your confidence and good looks, and the other day you would need to show how well you are able resolve particular tasks.
In 95% of cases there will be no honest response from the interviewer. That's quite bitter at the beginning, but it is logical from the interviewer perspective. It is also very rarely if someone would be happy to keep in touch after the unsuccessful interview.
However there is a good set of solutions:
1. Work hard and master your skills,
2. Improve your self-confidence and presentation skills,
3. Work and study after hours to improve yourself even more,
4. Go to interviews and don't stop sending your resumes to the companies you want to work for
If you do all the above some day you will get the right job! It is easy. :)