A lack of practical skills is undermining your earning ability. It's time to take a course critical to a rapidly growing field. Once you have this knowledge under your belt, you'll have your choice of lucrative jobs. Resist the temptation to contradict a demanding instructor. Challenging their directives will waste valuable time. Set your ego aside and learn everything you can from this teacher. At first, your grades will be indifferent. The more you persist, the greater your academic success will be.