No. Short answer, long explanation to follow. :)
Your goal is not to solve every last problem out there. Your goal is not to memorize every last thing that you might possibly get asked. Not unless you want to study for 5 years and/or teach the GMAT yourself. :)
Read this (right now, then come back here):
https://www.manhattangmat.com/blog/inde ... lly-tests/That's the beginning of the answer to the question "What am I actually trying to do here?"
Apply business principles: you need to be totally ready for the most likely things, somewhat ready for the somewhat likely things, and ready to move on quickly for the not-very-likely things. You're choosing which opportunities are good (and you'll go after them) and which are not (and you don't want to waste time and energy on them) - just like a good business person.
So, first things first: you're going to need to alter your mindset. Your goal is not that "school" goal to get 100%. Your goal is to be a good business person - make the best possible decisions for the circumstances, and spend your limited resources (time and mental energy) wisely, with the greatest opportunity for return.
Second, here's how to study:
http://www.manhattangmat.com/blog/index ... -the-gmat/There's a lot of stuff to read there, but the nutshell is this: most of your learning comes AFTER you finish working on a problem, when you go and pick it apart. So that's another reason why I don't want you to just go and DO hundreds of questions. DOING isn't learning. You won't be learning much if your focus is more on doing than analyzing after the fact.
Start with that and tell me what you think.