I'm sure at least a chunk of that was the publishing process itself. It's not like you have a finished manuscript and then it gets published the next day.
Also it doesn't seem like she's independently wealthy, so she probably was never able to write full time.
RickardHenryLee t1_iz7n56p wrote
Reply to comment by [deleted] in A new writer tweeted about a low book signing turnout, and famous authors commiserated by AmethystOrator
I'm sure at least a chunk of that was the publishing process itself. It's not like you have a finished manuscript and then it gets published the next day.
Also it doesn't seem like she's independently wealthy, so she probably was never able to write full time.