>>6341793(pic unrelated, I just wanted to share some art of Our Hero I made)
I may not be in any position to give QM advice but I think I do have some authority to give world building/setting advice as it's something I've been doing for a while, and my advice is that over-explaining on worldbuilding is a very common AND very potent mistake. I'm not saying you shouldn't think hard about everything, you should! you should absolutely consider all the facets of the little world your making but in doing so it's very easy to spiral into "well wait how do you explain that? then how do you explain what I just explained?"
as to what is "too much" worldbuilding? I don't really know, but just don't forget to reign yourself in because no one will ever see your worldbuilding if you just keep it in your head trying to perfect every minute detail, of course every one is different so do whatever makes you happy! but I felt obliged to give you that warning as I and many others have fallen into it that trap
