Reborn in the 1970s, Zhang Sanniu's new life

This is a rebirth novel. The female protagonist, Zhang Sanniu, suffers a serious illness and is reborn at the age of five. Because her family is so poor they often go hungry, after her rebirth, she and her father start selling goods and doing business. Later, the business grows bigger and bigger, and they earn a lot of money. Zhang Sanniu then takes her family to the capital to buy a house. There, she and her family make new friends, including the male protagonist, Liu Hao. Zhang Sanniu then starts a business with Liu Hao and his friends in the capital, and Zhang Sanniu and Liu Hao begin a new life together!