No problem, and good plan! Yes I am a current M1 so I just went through the same waiting game last October and I am active in admissions activities this year. Your chances of acceptance are probably better by interviewing early because there are still tons of slots left (I believe very few waitlists are handed out early in the fall, and that number really increases in the winter when there arent enough offers left to give out for all of the students that the adcom liked enough to accept).
And dont worry, I felt subpar compared to my interview group last year as well, and still do compared to the majority of my classmates, but if you were given such an early interview date, the admissions staff clearly liked what you had to offer! If you have more specific questions feel free to PM me. Goodluck!