Also.
I've gotten near my wits end with my mega project. The walls where easy to make when compared to doing flooring for the top layer.
Sooo much soap... so much.
Just wait until you get a human lord consort that walks at least SIX times slower than a dwarf and wants to help with a megaproject.
He ended up sacrificed to the gods.
Around half of my fort is made up of guests that became citizens. I ended up turning most of them into cannon fodder used to purge the freeloading guests.
Random slaughter caused a loyalty cascade that resulted in the deaths of my best metalworkers, most of my elite surface guard, and most of my crossbow dwarves.
12 of them were killed by the 16 year old Hammerlord named "The Somber Lessons of Virginity".
11 years of toil of nearly 180 humanoids has been unable to complete my monument. I hope I can finish it soon so I can start a cool challenge fort I thought of.