Gee I sure know how it feels... I had to get to the point of going ahead and doing, and making the going of it part of my therapy! Not caring (though I didn't want to, and often couldn't) how the outcome was. The outcome was never as bad as I feared it would be, even though my analysis of it was never totally accurate I think.

Try and do that, do you have medicine to take right before you need to begin to get ready? And remember, going to an interview is going to give you a better result than not going at all. Think of it as therapy!