You could take the test again. Many people take the test twice because they know that they will increase their chances of getting a better job.  Also, having taken the test once, and knowing your scores for each section; you can see where the areas of weakness are and can concentrate on improving and reviewing everything, while you wait for the next examination date.  It isn’t just that the PHD’s get the best jobs, it’s that the people who perform well on the test, show that they have done the work to earn a great position.  Companies want to know before they hire you, that they will be getting their moneys worth by paying you a salary.  It makes sense, to give it another try, now that you know exactly what to study.