Hi Isaaclin93,
Many GMATers spend 3 months (or more) of consistent study time before they hit their 'peak' scores, so giving yourself 3-4 months of study time is a smart choice! That having been said, trying to 'cram' a Study Plan into just 60 days might not be the best choice - and you might end up inadvertently rushing through materials that require a more thorough work-through. In addition, from what you describe, your immediate study plan is 'book heavy'; unfortunately, many Test Takers who study in that way end up getting 'stuck' at a particular score level. There's no harm in starting off your studies in that fashion, but you'll likely end up needing to invest in some additional, non-book resources at some point.
Since it sounds like you're just beginning your studies, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at
www.mba.com (and they come with some additional practice materials). If you want to do a little studying first, so that you can familiarize yourself with the basic content and question types, then that's okay - but you shouldn't wait too long to take that initial CAT. 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 (or you can feel free to PM me directly) and we can discuss the results and come up with a study plan.
I'd like to know a bit more about your timeline and goals:
1) Are you applying to just one Program - and does that Program also require that you take the LSAT?
2) What application deadline(s) are you facing?
3) Going forward, how many hours do you think you can consistently study each week?
GMAT assassins aren't born, they're made,
Rich