Planning Ahead in the GRE
It's a good idea to book your GRE test well in advance. Several months is not too early to plan ahead! Vocabulary is best built gradually, as you incorporate the important GRE-relevant words into your word-power repertoire.
You should be practicing essay writing regularly as you get ready for your GRE test, as you will need to write two essays, one called an "Issue Task", where you get to choose from two topics, and one called an "Argument Task", where you are given a single topic that you must write about.
Now is the time to write essays and practice including your new GRE words that you are learning from the video lessons - you ARE reviewing them, I hope! ;-)