India, Oct. 23 -- Luana Lopes Lara, the 30-year-old co-founder and chief operating officer of prediction market platform Kalshi, has become the world's youngest self-made female billionaire, with an estimated net worth of $2.6 billion. However, despite her newfound wealth, the Brazilian entrepreneur says her daily routine remains largely unchanged, including working 12 to 14 hours a day and rarely taking time off.

(Also read: Who is Luana Lopes Lara? 29-year-old who went from ballerina to world's youngest self-made woman billionaire)

Speaking to Fortune, Lara revealed that becoming a billionaire has not significantly changed her spending habits.

"When I say it didn't change my life much, it's because I think that I've always been laser...