I was also my first interview! second invite overall, but the first one I attended.
MCW interview tips: don't stress it! Be professional, be respectful, but BE YOURSELF. You'll have two interviewers, each I believe for 30-45 mins. The time goes by quick, so be concise when you're speaking, but BE YOURSELF. I keep stressing that because MCW looks for the individual rather than the stats, and personality is a big thing. I had an M4 and a resident physician as my interviewer, and both went very well-we mostly just made conversation rather than discussing my app. If you can, try to find some common ground to make them remember you a bit more and relax the flow of the discussion. My student interviewer and I didn't have much in common and the interview began a bit choppy, but we found out we share a love for a specific sport and actually competed at the same event 4 years prior. From there, the flow just happened naturally.
You already know your strengths and weaknesses, but so does MCW--thats why they're interviewing you. Theres like an 80% acceptance rate from the interviews, so focus on not giving them a reason to reject you and you're golden. The day is LONG--8am to 4/5pm if I remember correctly, so be prepared to battle zoom fatigue. I don't think I asked any questions in the large group sessions nor did I attend the optional activity between group programming and my interview, and I don't think it hurt me at all. Definitely do send a thank you afterwards--people say that it doesn't impact decision, but honestly if anything would help it would be that. Make it a little bit personal based on your discussion with your interviewer, be concise, and BE YOURSELF.
If you can I'd say practice a mock interview with someone, but I wouldn't stress yourself out too much about it. Best of luck, and I may see you around campus next year! Also if you have any other questions feel free to ask
