saybay

I'm about to start studying for the GRE. Looking into Kaplan online courses. First of all, is the Kaplan course helpful or would anyone recommend a different one (online)? Should I do some practice on my own before starting the course? I was planning on just starting the course when i start studying but I'm not sure if I'm supposed to go into it having studied already. If I am supposed to study before it, how? So much material I would not even know where to begin. Also, the course is only a month and I plan on continuing to study afterwards so it will not be my only prep. Any advice would be great, thank you!!