If you are worried about job security and do not have an adequate emergency fund (ideally eight months' worth of living expenses stashed away in a federally insured bank or credit union) you need to focus more on saving money than paying down the balance on your credit cards.
I'm a geophysicist and all my earth science books when I was a student I had to give the wrong answer to get an A. We used to ridicule continental drift. It was something we laughed at. We learned of Marshall Kay's geosynclinal cycle which is a bunch of crap.