I Was Worked Like a Beast After Entering a Period Novel, but Now I've Turned My Life Around

Strong Female Lead + No Romance + Independent (The original story takes place in the first few chapters; later on, the story explores new settings.)

I'm a good socialist youth from the 21st century. Who could have known that one day I'd suddenly transmigrate into the heroine of a rural novel set in the 20th century, where women are treated like beasts of burden?

She's lived worse than a dog or a pig since childhood. At sixteen, her father sells her to a widower in his thirties with three kids in tow. The three brats secretly bully and insult her, the widower shuns and neglects her, and her father makes things difficult for her, beating and berating her.

Now that I'm here, just watch me crush those three brats, kick the widower to the curb, and make all those old geezers work like oxen.

This is a fictional setting, and a feel-good power fantasy.