Hi PietroGirardi,
The only practical way to assess how you MIGHT Score on the Official GMAT is to take a FULL-LENGTH practice CAT/mock under realistic testing conditions that match-up with what you will face when you take the Official GMAT. Unfortunately, the results from working through random sets of practice questions or quizzes cannot properly define how you will perform on an adaptive test taken under timed conditions that includes all GMAT subjects in its pool of questions.
If you have not already done so, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can access 2 for free at
www.mba.com (and they come with some additional practice materials). That score will give us a good sense of your natural strengths and weaknesses and will help provide a basis for comparison as you continue to study. A FULL CAT takes about 3.5 hours to complete, so make sure that you've set aside enough time to take it in one sitting. Once you have your Score, you should report back here and we can discuss the results and how you might best proceed with your studies.
Before I can offer you any additional advice for your studies, it would help if you could provide a bit more information on how you've been studying and your goals:
1) How long have you studied? How many hours do you typically study each week?
2) What study materials have you used so far?
3) On what dates did you take EACH of your CATs/mocks and how did you score on EACH (including the Quant and Verbal Scaled Scores for EACH)?
4) When are you planning to apply to Business School and what Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich