12 points seems like you missed it by maybe 3 or 4 questions. I can only imagine how incredibly frustrating that must be, but at the same time, it does mean that you only need to raise your score by a small amount to pass.
The way I look at either the USMLE or COMLEX is that there are ~3 tiers of questions. First-tier questions test the stuff you just need to memorize - ie stuff like gram stains of bugs, unique drug side effects, sympathetic levels for OMM, etc. Second-tier questions are more complex and test pathology and pathophysiology - maybe require you to interpret some labs and/or a biopsy or ct to come up with the answer. Third-tier questions are the wtf ones that everyone always complains about. These you've never heard of unless you happened to do your doctoral thesis on the subject or have already practiced as a doctor in another country maybe. There's just no way to prepare for these with review books in the couple weeks before the test - the sum total of your science and clinical background is your best and only way to prep for these monsters.
The point is, though, that you don't need to get every question right. It's not gonna happen, so don't even try. What you should focus on is getting every one of the first-tier and as many of the second-tier right as you can. If you can pull this off, I think you will be well above the passing level. This means knowing your OMM, pharm, micro, anatomy, basic pathophsyiology (COPD, CHF,etc) and basic neuro (cranial nerves, intracranial bleeds, etc) absolutely cold. COMLEX is somewhat different than the USMLE in that knowing the buzzwords will actually get you a long way on this test, so you should drill any unique feature of a bug or drug until it's second nature to you.
Same thing with OMM. COMLEX tests a lot of bread and butter OMM - if you put in the time to memorize all the autonomics, how to name dysfunctions, etc. you will get a ton of easy points.
In short, memorize, memorize, memorize. Use repetition, make flashcards, audio recordings - whatever you have to do, but get those details into your head.
Although it is important to understand things, at this point, I would focus on making multiple passes through high-yield pages and avoid getting bogged down in any of your resources. If, as you say, you've read through everything 3x over 3 months, I suspect you're really reading the books and trying to understand them. IMHO, review books aren't really good for that and the time for that kind of understanding is a luxury you don't have now - your goal now is to make multiple rapid passes through the details over and over until your test comes. It's OK to clarify small things, but do not get bogged down in trying to understand the minutiae, especially in Goljan's path. I would kick up the studying to 12+ hours per day for the two weeks before your test - once you've distilled out what you need to memorize, then cram it mercilessly over and over until you step through the testing center door.
Hope that maybe helps a bit. Ultimately, I think you're the best judge of how and what you need to study. Hang in there and good luck.
