national study

hey guys for anyone who's doing/has done russia and the ussr as a national study, what would you say was most significant/had the greatest impact on society/the effectiveness of their consolidation in terms of either political, social, economic (and why) - this is for an essay response, my...

lol im stressing out cause my trials in 2 weeks and I haven't prepared essays. I have plans for all possible questions but my issue is remembering all of it. what are some tips. should I just memorise the plan and then hope for the best? or should I rote learn stuff?