Here we can say that if we want to perform good , we will have to keep our mind in relax mode. For this I am discussing some tips which will help in your preparation.
First of all set a deadline for completion of syllabus. It will boost your confidence level that you have done all the syllabus .
Give priorities to the highly weightage chapters. Thoroughly analyse of textbooks.
After this work on speed and accuracy with subjective practice. and at last and very important is that revise the syllabus and practice papers multiple times.
In my opinion these tips will help in stress free preparation.