From CNBC Make It.

In 2018, Desiree Hill was a medical assistant commuting three hours per day and barely seeing her kids. Hoping to earn extra income, she started a side hustle buying, repairing and reselling rundown vehicles. With no prior auto repair experience, she learned by searching the internet and watching YouTube videos. Today, the 39-year-old owns a 9,000-square-foot auto repair shop in Georgia that brought in $440,000 in revenue in 2024.