Nice improvement from your first test! Couple of things:

1) You said you're "in mgmat" - that means you're taking one of our courses, right? Make sure that you fulfill the requirements to get your end-of-course test review (one practice test by class 2, and two more by the end of the course). You definitely want to get your teacher's feedback. When you request the review, make sure to tell the teacher your goal score and when you plan to take the test - the advice s/he will give will depend on those things.

2) You mentioned that you're taking the material topic by topic. That's pretty necessary to start b/c you need to organize your work somehow, but one of your ultimate tasks is to figure out what kind of problem is sitting in front of you when it first flashes up. Obviously, you won't know during the test that the next five problems are all number properties.

So one of the things that you should start to do now is to do mixed sets of problems from the topics you've covered so far. Work on that task of recognizing what this problem is - what it's testing - within 20-30 seconds of it popping up on the screen.

Also, in my experience, it's not uncommon for people to see a little bit of a slump in terms of practice test scores (even a lower score!) about midway through a course. Basically, you're learning so much new stuff in such a short period of time that you're still trying to process it all and learn how to execute the various strategies effectively. That's going to slow you down, and that's going to hurt your score.

You don't mention when your course ends, but most people take 2-4 weeks after a course ends to "put everything together" - do some comprehensive review, check what weaknesses still exist and try to shore them up, etc. Just wanted to mention that you should work that into your timeframe for taking the test.

Finally, you mention struggling with CR - make sure you take the time to analyze CR problems. What's the conclusion? What is my task with each of the different major question types? Why are the wrong answers wrong? Why are they tempting even when they're wrong? Etc.

Good luck - let us know how it goes!