Some Advise

Hey All,

Keep hitting around 620-ish in my mock tests

Math
Quants, i keep making very silly errors, completely foolish. There are only about 2 questions every test I give my best guess, and like 5-6 where i messed up simple mental math, set everything up and forget a number, copy something down wrong.. These careless errors are my pitfall on this section but cannot seem to clean them up.

Going through the test after , I realize i know all the math, just silly mistakes. (Aside from the odd mind blowing 800 level problem)

PS > DS

Verbal
I am Terrible at SC - I read all the rules, gone through veritas and MGMAT books. I feel like I understand all the different segments, but have mastered none. As well I have no true attack plan for the SC I just read and try and spot the error and this does not seem to work. The longer SC are an even bigger challenge for me. I have a hard time finding the errors and they eat up a lot of my time.

RC is hit and miss, if I am interested in the passed I can crank out a perfect score, but I have a hard time reading things I a not interested in.

CR I am pretty good with it, hit it around 75% with some prethinking, but if i prethink the wrong direction, then alot of the time that question is done for me.

And I always run out of time on the Verbal and end up getting the last 3 questions wrong because I have to randomly guess.

I figure if I can clean up some of this mess right now I can boost my score 680+

Just need some help / guidance

I have my sights set on a top school, everything else is great (GPA, Application), but just need the final touches of a good GMAT score.