I always take two weeks off, and, though I failed one attempt at Level II, I think the two weeks were instrumental in my passing the second time (and passing Level I that first attempt).
This year, without two weeks off for Level III, I’d guarantee I fail. It’s just an invaluable opportunity to make up for time lost/wasted.
2nd attempt L2 here. I’ve always taken 1 week off for past exams. Maybe I should do 2 weeks but that would take almost all the time off I have left. @jasdev do you have a particular schedule for the 2 weeks for your ‘L2 winning combo’?
Entirely depends on where you are in your studies and what you feel your strengths and weaknesses are. Almost everyone agrees that practice via exams and question banks is critical for success, though. Just try to stay motivated and healthy, and do as many hours as you can each day.