Beginner needs for your support and help in GRE® analytical section

[Sonnet]

Dear all
I'm not American or Canadian, therefore I don't have access to the latest books or courses for GRE which probably exists in those countries. I've merely prepared Barron's,kaplan, 2 work books for verbal section & few more material from the net. I know it may sounds ridiculous for you, but non of my friends do not even thinking about preparation for GRE, namely entry to American universities,so I'm rather stressful about it & thank goodness that at last I've found this forum to ask for your help. I'm rather confused about the analytical section. When I was preparing for IELTS,my instructors told me use synonyms or as much as adverbs & adjectives I could in my sentences to 1) show that I know many vocabs & 2)to increase the number of my words in order to reach 250. Now in kaplan I found things are exactly different, as it says I should avoid redundant vocab,modifier,sentences, expression or what ever I used to expressed my power in writing.
My second question is regarding the topic of the essays,some of them are REALLY too meaningless for me, I mean I don't comprehend their meaning, what they ask me to write, especially in Issus part where it only represent in one sentence.Besides,when I read the sample essays in Kaplan,I found them a bit high level according to both style & analytical reasons or examples.Should I be on the same level to get 6 or at least 5.5 for my writing part.
As I mentioned previously there is a shortage in my country market for GRE materials, ALSO I can not order book on internet, so please just introduce me any USEFUL website or lead me by your own knowledge & experience.
Thanks a LOT!

[Knightpraetor]

Are you aiming for a 5.5 or 6 as a foreigner? you have high aspirations! I wonder if I even did that well...

If I were a foreigner, I would focus on making sure you use the words you know correctly, minimize incorrect grammar, and avoid using complex words that you may not understand properly. I would focus on making sure your reading comprehension is high, so that you will understand the essay topic. Then, focus mostly on showing that you can design a clear argument with nice structure. You are more likely to score points if you can demonstrate creativity, since the probability of you demonstrating impressive diction (word choice) is probably lower than what a native will do. Anyways, most foreigners are accepted because of their math scores on the GRE from what I have seen.