How ladies got dressed in the 18th century
Here's a video showing how upper-class English ladies got dressed in the 18th century.
I like this demonstration because it's done slowly enough to follow this complicated process, and because the narrator explains what each separate garment is for.
One item she didn't explain, however, is the corset busk, shown at 2:11 into this video. (Similar to the one shown here.) You may recall that Brianna used a corset busk as a weapon in A BREATH OF SNOW AND ASHES, when she was being held captive by Stephen Bonnet's slave Emmanuel.
You can definitely get a sense of how time-consuming it would be to put on all of these layers of clothing!