I'm going to add to the harsh comments, then I may have to hide this thread because the attitude of the OP actually makes me quite angry. My issues I know. But ...
I write for a living but that doesn't pay the bills so I teach as well ie I'm an academic. I was widowed suddenly & with a 3 year old so had to do it all (it was a long time ago so don't need sympathy now).
I have the responsibility of "being creative" and "developing myself" PLUS earning the money to keep me & my DS. He's launched on the world now I'm old but I still have bills and a pension to earn.
So excuse me if I think you sound so completely pretentious and entitled.
I'd like to know how much of my very hard-earned taxes goes to keep your household going (bar child benefit, we all get that & a good thing too).
And I'd like to know how much you're saving for your pension.
Because unless you are in receipt of no state funding other than child benefit & use of NHS and all of the things we all get, and saving in a pension scheme for yourself, then you are massively selfish and expecting people like me to fund your "creativity," as well as relying on your husband for a meal ticket. I also think you're putting the cause of women to be treated as equal human beings back massively, and setting a bad example for your DC.
And really, if you want to write, bluddy get on and write. Get up an hour earlier & do 500 words a day. You can write a book in a year that way. It's how I did it when I needed to.
And if your DH dies, as mine did suddenly? Or pisses off with a younger model? (they do -- I always think at least I as spared that, as awful as the 10 years after my DH's death was).
Look most people can raise a child fairly well, & be "good enough" parents. In the scheme of things, it's nothing special. All of us need to contribute beyond the 16-18 years of our DCs' dependence on us. You have a long life ahead of you.
Get trained, do something worthwhile with your whole life. and act as though you're a team with your DH. I don't often feel sorry for husbands that we hear about in this forum, but I feel sorry for your DH.