One other thing that could help your mind set.

Treat every interview as practice. As a teaching tool how to get better and better at it.

Also treat job hunting AS YOUR REAL JOB. Until you are employed, the search for the right job is your only job. Take it seriously. Make goals you can reach. Like trying to hand out so many resume's a day or getting so many interviews a week.

If you walk into your first interview with that kind of mindset, you may just nail it dead on.

I will be cheering for you!