Economics Optional.

Next year i.e. 2025 is my upsc attempt,my optional is economics. I have completed notes making by watching lectures of Vibhas Jha sir and read the standard books 2 times still I am unable to answer the pyqs. This is making me loose my confidence. I am stressed out. Also , unable to remember anything. Whenever I see a pyq I suddenly become blank and scared. What should I do? Is there anyone who is from economics or any other optional and had suffered the same fate, then please tell a way out of this?