The key to the exam is to read what the lobster said carefully. Everyone has a certain safety zone. If you want to surpass your present achievements, please don't limit yourself, dare to accept challenges and enrich yourself, and you will certainly develop better than you think. The old lobster is self-limited, and only by getting rid of it can it develop better. If you want to develop, you must have the courage to get rid of past achievements.
So the best idea is to dare to challenge yourself.