Interview Advice Please

OMG, I have an interview!!! I am so excited And freaked out Here is my problem:
I have a great resume and I always interview well. I am super confident, dressed perfect, etc…but I have not been successful in the past two interviews I went to (they were not for CNA). I only went to two in the past two years. I know I was way over qualified for the positions and w/the job situation there were probably a billion people interviewing for them I was just not used to that though since I have always been hired on the spot or after one interview for every job I have ever had.

So now I feel horrible, very nervous and like there is something wrong with me where I never felt this way before . I have no idea what it could be.

I have an interview with a recruiter for a CNA position at the hospital for one of the schools I am interested in (99.99% sure) I will be attending next fall. I really, really, really want to work here. So I don’t want to mess this up.

What should I do for the interview for a CNA position? I just don’t want to blow this.

I have no CNA experience just got my CNA in June but I have plenty of real life experience since I have helped my family members with hospice. Should I mention that if they ask about experience or is that too personal?

If anyone has any advice about CNA interviews I would really appreciate it from those who have been there.