Most of the time in a job interview, interviewers are reasonably competent and you will not need to manage your job interviews. Your biggest problem will be managing yourself!
Let's be honest: Interviewing for a job is stressful, especially in a tough job market. And the longer you're out of work, the more stressful it is.
But job hunting is all about selling, and selling is all about making an authentic human connection, and authenticity is all about being relaxed, or at least appearing relaxed, so that you can relate -- on a human-to-human level -- to your potential employers.
In brief, you gotta make them like you.
Fortunately, this is not as tough as it sounds. The key is to think of your interview not as a test you're terrified you're going to fail but as a conversation. In a conversation, you are not up on a stage all by yourself, performing. No, a conversation is a congenial give-and-take. A conversation is just talking.
So how do you talk yourself into a job?