You've got yourself messed up and want to improve? That is absolutely no problem! Your employer will give you a number of tries per question. The number of attempts is indicated next to the question.
Sometimes you even will have an infinite number of attempts. Just check the little box in the interview. An example of how this can look is shown below:
❗ Keep in mind there is always the possibility to start completely over. You should only be aware that the company will see how often you have restarted.