About a fifth of millennials and nearly a quarter of Gen Zers believe they would need to earn $1 million or more annually to feel rich, according to the recent CNBC Make It: Your Money survey, conducted in partnership with Momentive.

If that's your goal, you don't have to cut out little luxuries to get there, says Ramit Sethi, a self-made millionaire and author of the New York Times best-seller "I Will Teach You To Be Rich."