I don't think so you should memorize anything
take printout of syllabus don't go beyond limits
clear topic wise make key points which may be helpful to you
divide your study in tasks & bring down upto daily routine as
E.g
pak affairs = 7 days
subdivide it before partition= 4
after partition =3
& again subdivide
this will decrease pressure from your mind it has worked well for me

if you have other theory go for it...!
Pray for me
Regards
Lonewarrior

__________________
sufi*