I found it useful to try to get excited about the schools i might be able to attend if i got the scores I want. Or the money you would more likely make coming out of top schools (if money is what does it for you..).
Put it this way, in many ways a differences of maybe 5-6 points on this test could (i'm not saying necessarily is) worth 10's of thousands of dollars, if not more, in terms of scholarships/finaid or in a higher percentage chance to get a job with a higher salary. Think of the amount you are earning per hour of study time in this regard, and treat it like a job.