Very good and to the point question.
Answer is YES.
Q.1WHat is ur approach when u solve MCQ? You not only read the correct option but in addition ??
Q2WHat are your subjects that yu are initially and more focussed on??
U read about past 5 yrs papers, you also gain the knowledge of:
1..How the right option would hv become a wrong option to choose..
2. Why the other incorrect options are actually wrong..
3. Detailed explanations which is from text books and latest research articles.
Plus MCQ solving speed and MCQs per day is a very important aspect of any preparation. After starting very slowly(bcz u hv to read about the topic), try to solve 100–120 mcqs per 60 minutes, once u have gained the momentum and the way to approach MCQ exam → you increase the number of MCQs per day.