I got an interview after 6 applications - what worked for you?

It took 3 weeks, but I have a first interview on Wednesday. I am in Boise, in case local advice matters. I tailored my résumé and added a short note. How do you stay calm?

Thanks for writing this out. I went through something close to it 12 months ago, and it got easier once I kept a simple log of every call and form.