Try not to think of it as memorizing, but actually doing... recommend hanging up your posters in some fashion that allows you to actually touch them and run through flows as if you were in the plane. Don't just sit there and try to memorize stuff.

For the memorization list items, the instructors may tell you the typical acronyms used... or you can invent your own, sometimes that works best. You will have more time to study that stuff once you're there, but the problem is that once you're there, they are going to pile up and dump more stuff on you to study and memorize every day, so it just makes life soooooo much easier to have it down pretty well beforehand. Then you essentially just review it every day to keep it up to par. Good luck!