Don't be nervous

So I have a job interview today, it is a great job, with job security and opportunity for growth.  I know I will be great at this job, I just need to convince the three people interviewing me today. 
Here's the plan, I have read over all types of interview questions, rehearshed answers to behavioral questions, prepared a few questions based on the job description and company research.  I will de-lint my cat fur covered clothes, I know exactly where I am going.....I will be ready!

This is the job I am gonna get, this is the job I am gonna love!

I just have to be positive and confident.  And remember it isn't cocky to talk yourself up and it is just selling yourself as the best candidate for the job!