Your first problem is about how to manage your time efficiently while preparing for exam. I was strongly recommend that you should read a lot, but not unnecessary facts. Use different useful ways for preparing exam, such as do a lot practical tasks. You ought to repeat all the strongest materials for exam. Because repeating is the best learning way. The second problem of yours is how to cope with both study and doing household chores at home. Of course, that's a big problem for all examiners. I think you should manage your time clearly. At first you make a list of your houseworks and divide them into types. One of them the most necessary, next of them important and last of them unnecessary doing tasks in these days or till exam. For instance, building houses for cats is I think that last one. And certainly use ear-bud in every time while doing your house works and listen audio materials. And the last one is if I were you I wouldn't relieve the anxiety before exams. To my mind it isn't worthy to worry. You should believe yourself and your knowledge and skills. It will be OK. Hope my advice works. Let me know what happens. Best wishes, Elizabeth. 
Your  
first
 problem is about how to manage your time  
efficiently
 while preparing for exam. I was  
strongly
  recommend
 that you should read a lot,  
but
 not unnecessary facts.  
Use
  different
 useful ways for preparing exam, such as do a  
lot
 practical tasks. You ought to repeat all the strongest materials for exam.  
Because
 repeating is the best learning way. The second problem of yours is how to cope with both study and doing household chores at home.  
Of course
, that's a  
big
 problem for all examiners. I  
think
 you should manage your time  
clearly
. At  
first you
  make
 a list of your  
houseworks
 and divide them into types. One of them the most necessary,  
next
 of them  
important
 and last of them unnecessary doing tasks in these days or till exam.  
For instance
, building  
houses
 for cats is I  
think
 that last one. And  
certainly
  use
 ear-bud in every time while doing your  
house
 works and listen audio materials. And the last one is if I were you I wouldn't relieve the anxiety  
before
 exams. To my mind it isn't worthy to worry. You should believe yourself and your knowledge and  
skills
. It will be OK. Hope my advice works.  
Let
 me know what happens. Best wishes, Elizabeth.