Yeah, Did you recognize me .... I am in same boat ( labbeled forgetting) with you for the Gmat journey.
I don't think it is possible to remember everything. It will come across your mind automatically. Unless your plan GMAT in 3-4 weeks you can relax. But make a blog and
put all your imptant points in it. Take a printout and go through it every day 4-5 times. While
going to officee, while sipping coffee, etc .....
Remember don't make your note very exauhstive. Just note down, bare points with small/smart examples.
I a couple of days it will be with you. Just relax.