If you are unsatisfied with one of your answers, don’t fret. There truly are no right or wrong answers, just stronger or weaker ones. Sometimes, if there’s a similar question, an applicant can add additional information that they may have forgotten in a previous answer.
Calling back to previous questions in this way can show that you have the ability to recognize and correct a mistake made with grace. This will be far more memorable to your interviewer than the actual mistake itself. Remember that in most cases, there are no right or wrong answers.
Your authentic thought process and unique perspective are enough to set you apart from candidates with a similar profile. Don’t spend time worrying about a question that you may have answered incorrectly; this will only distract you and probably cause you to stumble on another question.