Hey,

21 years of age is still very less. You will see people preparing till the age of 25. You still have a lot of time. Just relax and don't panic.

It's obvious to get these thoughts but it's not good to take it too serious and stress you mind.

If you have difficulty in Quant preparation I will suggest you to join some good coaching which helps students to prepare for exam like these.

At this point of time you need to be calm and don't loose hope on yourself. Once you will clear the exam all these age and all will go away.

Practice harder than earlier and try solving past year papers.

All the best.

Thank you.