even for me its one of the worst thing, as m too bad at cramping things....
i suggest u onething, what i have done... jst give it a reading now... nd when u'll be having exams, then a month before, study it well, nt frm any high-fi book, but from textbooks.... nd then u'll rember it, atleast till exams.... thats what i have done
nd to mention a few things, do study all the structures, although they rnt asked anywhere in exam, but certainly they help in questions like asking no of lone-pairs or basisicity of acid etc etc...
hopefully it will help 