What should I answer for "what if you are not selected" in an interview?

I’m very interested in this company as well as the position. If I didn’t get a job here, it would definitely be my mistake.

Don’t complicate yourself when you hear this question. Answering this question is as simple as the question.

Just think about the reality. What will you do if you are not selected? You will somehow move forward. You will search for better opportunities at other companies. Right?

Answer the interviewer as it is. But in a little tactical way. How to answer this kind of question is that,

“Actually, I’m very interested in this company as well as the position. If I didn’t get a job here, it would definitely be my mistake. It would make me feel bad, for sure. But, I won’t lose my self-confidence. So, first, I will find where I failed and made a mistake and then correct my errors before attending the following interview.”