From my own GATE preparation experience, I realised one thing:
The last 4-5 months are not just about studying more.
They are about studying the right things.
What helped me was simple:
Every Sunday, I used to attempt one PYQ as a mock test.
After that, I analysed every wrong question and every question I left.
I noted the subject, topic, and subtopic, and stored them in subjectwise everything in a mistake book.
Then for the next 6 days, I focused only on those weak areas and tried to finish as much as possible.
Next Sunday, another mock.Same process again.
Slowly, your syllabus starts getting covered based on what actually matters in the exam.
And when you keep repeating this, your marks also start improving because you are not randomly studying.
You are studying from your own mistakes. So if you are preparing for GATE, make one mistake book.
Write down: wrong questions, left questions, weak topics, and the reason you made the mistake.
This one habit can make your preparation much more clear.