A retake costs 6 000 ₽. Review mistakes, repeat weak topics and avoid paying again for the same errors.
It is not always clear which questions caused the failure.
Paying another 6 000 ₽ is stressful.
General reading is less useful than working on weak topics.
Take a practice variant and see the modules where you lose points.
Use answers with explanations to understand the logic.
Repeat the topics that caused the failed attempt.
A short preparation plan is cheaper than another failed attempt.
You go to the retake knowing what to focus on.