agaian, don't worry about what you are scoring right now. worry about what you need to do to get you where you want to be.
and oh by the way, i don't believe in the word "luck". please don't let anyone say if you are lucky you'll get an easier test. if you study 2 months 8 hrs a day (including sat, sun, your brother's wedding, your mom's birthday, new year's day etc etc) and review all your stuff well, luck will have nothing to do with you. you'll answer them right and get your 20.
you just have to be determined and mature enough to say to yourself that you will dedicate all your time for the dat for 2 months and then go and do it. 2 months isn't hard to do. if you say to yourself during these 2 months that there is only one thing that matter (that being DAT) i don't see why anyone can't be ready.
good luck!
p.s you could probably be studying for your DAT instead of spending sooooo many hrs on SDN.