Simple logic ....As it is so close to the exam there is no point of reading study materials again(I think it is close) .Buy Past Paper Books .And Start doing papers .When you feel that a particular question is bit unfamiliar to you ,read that topic again.ONLY that topic.And try to answer that PP question.Like wise try to do at least 10 questions per day.So you are basically covering 10 topics per day .Here covering means not learning everything in that part,but if you do more and more PPs @ the end you might have covered all the parts.
For Mallila and Nangila doing A/L's next years
Dont wait until it gets down to 1 or 2 months .Start to practice the above strategy NOW .It is the best method .And A/L's is not a tough exam.If you work from the beginning like that,you can have a great sleep through out the 2 years.No need to put you legs in a water basin .
Good Luck !