Hey Adeel - thanks for the question. That "score ceiling" is certainly a dilemma that a lot of people face, and having seen so many people feel stuck and struggle to keep improving I know how frustrating it can be. If I'm to be completely honest, I think that there probably is a certain score at which individuals can't realistically expect to go much beyond, and sadly that number isn't a 180 for every single test taker out there. Some people simply aren't going to score in the high 170s, at least not within a reasonable amount of prep time (and for a reasonable amount of money).
But let me put a HUGE asterisk on that point by saying that, while yes I think we all have a ceiling for our potential, I'm quite confident that you haven't reached your full potential yet. Hardly anyone in your situation has. And that's really good news! (albeit probably a little annoying). So let me give you a few tips that I think might help you keep improving:
- yes, I would absolutely go over those old tests again! Specifically looking for a couple of things: patterns to your difficulties (a certain LR question type/Family perhaps, a particular type of game, maybe just something as broad as "Reading Comp," etc), the reason WHY the difficulty existed (conceptual gap/misunderstanding, failure to identify conclusion/type of reasoning, fatigue, etc), and how it is that you can recognize a similar situation in the future and have a proven strategy for addressing it. And do the same for the December test you just took once it's released in a few weeks.
- once you've got perhaps a more specific grasp of where you're struggling, and you're investigating why and how to fix it, return to the relevant portions of the materials you've got like the Bibles, and review them extensively. Then work to put into practice the skills you're honing by doing timed problems/problem sets that a representative of the original source of difficulty.
- consider some extra help. This is an incredibly challenging exam, and unfortunately self-diagnosis and self-remedy are often elusive for people after a certain point. I know you mentioned being strapped for cash, but a few tutoring hours can make a world of difference simply by allowing someone highly trained to take a look at your performance and guide you in ways you might not have been aware of. And that becomes especially true for students trying to break into the highest score levels like you suggest.
- stay aware of your mentality. I know moshe mentioned above that taking a little break can help, and I definitely agree with that, especially if you begin to feel yourself burning out or unmotivated. So keep a close awareness of how you're feeling as you keep working with this thing and don't be afraid to step away from it for a few days here and there if necessary.
I hope that helps a bit and please let us know if you have more questions. Oh, and I noticed a similar question over on our Blog (
http://blog.powerscore.com/lsat/bid/246415/) so I'm hoping this helps answer that as well. If not let me know!
Jon