Some points to consider (from someone who got 140s in Prelims in 2020)

1. Whatever you could have studied, you have. At this point of time, have no regrets about number of revisions missed or number of tests remained unsolved. So don't worry about it.

2. Have COMPLETE faith in yourself. You have worked hard for this since last year, or more than that. Believe in your preparation. Tell yourself that you trust yourself completely.

3. Imagine the examination hall vividly. Imagine every possible negative event - bad bench, teachers talking, seat near entry etc; and tell yourself you wont be affected by all these and you will focus only on the paper.

4. Imagine how you want your mind to be at time of solving paper - calm and curious; these two attributes will help get the best out of you.

5. Play the game ball by ball. One ball at a time. If a ball is bouncer, duck it. Dont be afraid of next balls because of one bouncer. Even if you cant solve 10 questions at a time, tell yourself you have 90 more of them.

6. Dont celebrate too early. Dont be happy if you solve more than 40 questions in first iteration. Complacency is extremely dangerous in the exam hall. It can destroy your performance. Be very focused and composed till very end of exam.

7. No matter a question may seem easiest and obvious, READ all options. Always.

8. There is another one: treat the day as just another day. Treating the day as D day etc. builds pressure and anxiety. While treating the day as just another day in your life naturally builds comfort.

9. Final one. When you have taken your seat, and while the paper is yet to be distributed, take some deep breaths for 2-3 minutes. It will be calming.

10th Oct is just another day. And UPSC CSE is just another exam.