kaplan's QT 5

hi all,

ive just done my QT5 and my score was 53%,im a bit scared coz im taking nclex last week of november,on QBANK ive been getting above 60-70 % for 50 items.could anyone feedback or advice me what to do to increase my score on QT,it goes up and down it shoud be up by now.

thank you very much

regards