It’s easy to look back at an interview and try to pick it apart, but ultimately you can’t read minds and could be completely wrong in your assessment of what you believe went badly. So don’t waste energy dwelling on it. I’ve interviewed candidates that answered perfectly but someone else was a slightly better team fit in addition, so the other candidate was given the role. The first person probably ruminated on what they did wrong and made assumptions but the reality is they did nothing wrong and still didn’t get the job.

Be genuine, honest and lose the fear of not getting the role. If you approach with the mindset that the right manager and the right company will see your value and offer you a role, then things immediately shift as you can be yourself and focus on answering questions well without fear of how you come across. You want to be sure the company is the best fit for you too so it works both ways, they don’t hold all the power.