@acetylmandarin - I couldn't agree more about choosing the answer that is LESS wrong. The most common scenario for MCAT takers on the CARS is to narrow down the answer choices to two and then consistently pick the wrong one. I have a theory that this is because we as humans are naturally risk adverse. So when an answer choice has "extra" material (material that is more likely to be wrong than right, because if you don't immediately recognize it as right, you've got to ask yourself, why is that) we are hesitant to risk getting rid of the material. With the less wrong approach, you are looking at all the material in the answer choice and asking, which one of these has the material that is least likely to be wrong. Such a useful way to check our unconscious biases.
It's probably good to take a little bit of time off to recharge, but I wouldn't take too much time off, because you'll lose the gains you made for this last attempt. With the other sections, it's okay to study a few times a week, but with the CARS, I'm convinced that consistent practice, even if it's only a passage a day, is the best way to go. If it's possible to build a routine where you complete and review one passage a day during your lunch break or right after work before you leave, you'll find that your gains build up over time. Then throw in a couple extra on the weekends. Having a full-time job makes it more difficult, but it IS POSSIBLE! You might just have to do your studying over a larger, more prolonged period of time.
As to CARS prep-materials, I'd take a look at TBR's practice tests if you've already used up all the standard materials. They're not the best, but encounter new and unfamiliar passages is really important for CARS practice. Best of luck!