Hey, I agree with @juiceboxrampage's comments. I took the GRE in December 2014 and started studying for it just two months before that. When I started, I thought it was going to be the challenge of a lifetime. I was not as intimidated on the quantitative section since I've always thought that my math was better than my verbal skills so I really drilled myself to study as much as I can on the format, common question types and patterns of the verbal section. What I realize now is that GRE is like anything else in life, the more time, effort and practice you put into it, the better you'll become. So first off, if you haven't already, get the Kaplan GRE book, it provides all the details on the exam itself so you'd have a comprehensive understanding of what you should expect on the exam. The practice tests in the book as well as online (comes free with the book) are by far the most helpful form to familiarizing yourself with the types of questions you'll see on the actual exam. Even the layout of the online practice tests almost 100% mimics the actual computer-based GRE test.
Let me break down the verbal section first. There are essentially 2 types of verbal questions on the test: 1) vocab and 2) reading comprehension. The best way to study vocab is not to force yourself to memorize the words and definitions but to actually understand what the word means. Mnemonic devices are the best way to do that. I created a spreadsheet of all the common GRE words I didn't know and studied them everyday. It may not sound effect but you'd be surprised by what your brain can retain when it comes to actual test taking. With respect to reading comprehension, the Kaplan book does a very good job of explaining the types of questions and tips to tackle them. Since I knew this was my greatest weakness right off the bat, I forced myself to do sample questions on a daily basis. The GRE tries to add tricks into their reading comprehension questions to make the questions seem harder than they are, my advice is just to thoroughly read each question instead of skimming and trying to answer. And in the event that you really don't know, eliminate answers you know/think are wrong and just guess from the remaining choices since you don't get docked points for answering incorrectly.
The math section, in my opinion, is a lot easier than reading. My suggestion is to understand the basic math laws/theorems (PEDMAS, pythagorean, etc) and always read the question carefully. I can't tell you how many times I've been burned on practice questions just because I didn't read the question in a detailed way. For some questions that seem to require an equation to solve with variables, it's simpler to just substitute in each of the answer values and see if the equation is equivalent. My weakness in the math section was probabilities and permutations, here is a great website that teaches the laws commonly seen on the GRE questions.
Anyways, good luck in your studies, the test really isn't that difficult. I know I was just intimidated at first because it was the SAT equivalent for post-grad and I didn't do too well on the SATs. If you put the time and effort into it, I'm sure you'll do fine.
Keep it real.
