ANSWER:
Have full faith and reliance upon Allah and go for this test if it’s an important exam while taking the necessary precautions, like face mask, sanitizing and social distancing etc.
What you hear are mostly said to intimidate people and to prepare them mentally to take the vaccine. Less than 1% die of it and about 85% of the people don’t even get infected and those who are infected, the vast majority of them are cured without any medical intervention.