As one who has had a career change in my mid-fifties and still trying to define who I am, I am the poster-child for imposter syndrome. I recently interviewed for one role with the state that was drawing from experience that I had in my first career (20-30 years ago), (a job that was pulled before they hired anyone) so when I went for my first interview for a second job with the state that was more up to my current career and very much in line with the direction I want my career to go (even more than the other job I interviewed for) I kept in mind my years of experience with the job I currently have, and all of the successes I had in that position. Although I felt nervous and awkward during the first interview it impressed them enough to call me back for a second interview where rather than ask me about my experience the questions were situational (i.e. if you had a client with this sort of issue, how would you handle it?) I was not expecting this but once again was able to come up with answers that had them all nodding in the affirmative as I gave my answer. My biggest suggestion would be, when you prepare for the interview, consider those types of questions, (how you have or would handle a sticky situation or client, and what are your feelings about situations you might encounter in the new role). During the interview, there is no reason to jump right into an answer to any question. Take your time and collect your thoughts and if you need them to clarify the question it is better to ask than go off on a tangent that isn't related to the question. You might buy a little time by starting with, "that is a really interesting question, [pause], and as I think about it, [pause], I would probably (...) This does two things: It (1) shows them that you appreciate the seriousness of the question and (2) you are not one to jump into something without first thinking it through. Research the company and the position as much as possible, and during the interview interject items of what you know about them into the conversation. Say or ask things about how the role would interface with another part of what the company does. Bring up things that show them you have done as much homework on them as they have done on you. The biggest positive I see in your post is that even after eight months, they were impressed enough to come back to you and ask you to try again. Even though the role may have changed a bit, just remember, you are not an imposter, you are a woman of worth. They believe it so you need to believe it too.