How a 29-year-old nanny making $175,000 in NYC and Georgia spends her money

Brieonna Johnson, 29, earns $175,000 a year as a full-time nanny in NYC and Atlanta, Georgia. Her base salary for the family in NYC is $130,000, plus any overtime. She earns an additional $30,000 working part-time for the family in Atlanta and another $15,000 through occasional side jobs as a travel nanny and newborn-care specialist. This is an installment of CNBC Make It's Millennial Money series, which profiles people around the world and details how they earn, spend and save their money.