Hey Twinkle, dont get tensed...else you will forget even what you have studied...just be calm and dont take stress..
since the time is short, concentrate on the chapters that you have already done...just revise them...also, you can just rush through the theory once or twice if time permits (depending on your reading speed)
and just do what you have done till now...taking up any new chapter at this stage, may confuse you more.. just be calm and give your exam without tension...
all the best...good luck...god speed