Sanjay's response indicates a lack of confidence and self-awareness regarding his fit for the role. It is a clear indication that he is not prepared for the interview and is unable to discuss his relevant experience. For improvement, Sanjay should have reflected on his past projects and provided specific examples that highlight his skills in using HTML, CSS, and JavaScript, as well as the challenges he overcame, similar to the benchmark response. It's crucial to be able to articulate past experiences and how they relate to the job requirements during an interview.