LR1: -11

LR2: -7, of which 3 were stupid mistakes.
LG: -2 more stupid mistakes. Basically overlooked a small fact
Reading Comp: -7 (not enough time for the last passage)
I got a 159 making all these mistakes and a 167 if I hadn't made the mistakes.
When I went back and looked at these they were so easy that I got them right of the bat. I need to fix this problem because I'm taking the exam in 2 weeks and have want to get this done with. I'm definitely not having a concept problem because I can get all the tough ones, In fact the ones I get wrong are generally easier than others.
Any help or advise from how you corrected this issue would be awesome!
Thanks!