So let's call your current scoring level around 600, but with timing problems that can cause you to drop 50-100 points. To get to 650, you have to fix the timing problems that are causing fluctuations (so that you don't
drop),
plus you also have to lift yourself another 50 or so points. That's a lot for 3 weeks - that probably isn't going to be enough time.
Timing problems are typically a 4-6 week process alone - possibly longer, depending upon how severe the timing issues are. Read these two articles and start doing what they say:
http://www.manhattangmat.com/blog/index ... to-win-it/http://www.manhattangmat.com/blog/index ... nt-part-1/The 5th edition is somewhat different, but not siginificantly different from the 4th edition. We did add material that addresses some topics that are more commonly tested now, though (such as meaning). You might want to start by looking here:
http://www.manhattangmat.com/blog/index ... orrection/Finally, you're describing a stamina issue. We all have stamina issues towards the end of verbal, of course, and there's no way to get rid of that entirely. It
is the end of a long test! But there are things you can do to help improve stamina - read this:
http://www.manhattangmat.com/blog/index ... you-crazy/Also, during study sessions, plan out EVERYthing you're going to do for an entire two hours. Plan out extra, just in case you finish faster than you think. Then GO for 1 hour without stopping - no checking email, no getting something to drink, nothing. Just like the real test. Then take a 10-15 min break and GO again for a second hour without stopping. Then take a more substantial break (at least an hour) to rest your brain before you study more. (Don't study for 4 hours straight. Studying is actually MORE tiring than taking the test because you're trying to create new memories, not just recall already-made memories.)