Hi Marie! I'm Emily and I came across this forum and I wanted to introduce myself because I'm the author of the Reddit post that Kim mentioned in her comment. I'm glad to hear that it's been helpful!
I'm originally from Canada and I moved to Paris specifically for Notre Dame and to, quite literally, pursue a career as an expert in all things Notre Dame - or, as I like to joke, “a professional fangirl”. I'm a self-employed tour guide giving private tours that focus on the cathedral's architectural history, the restoration and its role in art, media and literature.
There's truly nothing I love doing more than sharing my love and knowledge of all things Notre Dame. I'd be more than happy to help if you have any questions about visiting Notre Dame!
(Please let me know if this comment breaks any of the Community Guidelines and I will edit/remove if needed)