Hi Hnoorshn,
To start, for anyone who want to know a bit more about the 'backstory', here is a link:
gmat-6-9-month-plan-600-score-205795.html#p1575797If you really have been studying this much over several months, then you probably ARE 'burning out.' Considering you've given yourself so much overall time to study, I'm curious WHY you're doing so much work every week? It's not necessary and you're not facing a looming deadline, so you might want to ease off this pace. To that end, you should probably take a few days off and relax a bit. When you're a bit better-rested, you should take a FULL-LENGTH CAT and then report back with your scores.
Since you'll have to spend 4 hours in front of a computer on Test Day, you really have to work on building your endurance in this regard. Studying for hours on end out of books will NOT train you to properly face the physical and psychological aspects of working through the Official GMAT.
GMAT assassins aren't born, they're made,
Rich