Writers Curse has its roots in the fact writing a novel can have real negative consequences (it takes ages, massive sacrifices are needed, and very unlikely to make anything substantial etc.) And yet, such people can have an obsession to write. Honestly I met so many crazy obsessed writers over the years.

If you have money then it would be great fun. But it's a huge burden if not.

Note: you will hear about some novels that take only X weeks and make a ton of money. e.g. twilight. But most writers I ever met the average was around 5-7 years for the first book. If you're taking X weeks, the odds are it will be pretty shit unless it's very autobiographical. I loved dhamma bums by Jack Kerouac for example and I think he smashed that out in about 3 months.