.. go to a Borders or Barnes and Noble in your area, sped a couple of hours (and a cuppa Latte or whatever) and peruse the Access books in the shelves. Find one that seems to speak to you, what your self-percieved weaknesses are, buy it, then go home and study those parts. When the employer calls and offers you the job, when you go in, you'll be prepared. When you're prepared, you're confident, and that shows. Even if you go in, and they throw something a tyou that you're not prepared for, you'll still know that you have a source (actually two, for you know how to get onto IWETHEY!) of reference, that that is still more confidence.