Katrina is a single mother working full-time as a certified nursing assistant for just $9.49 an hour. For a year, cameras captured her day-to-day struggles to pay bills, manage illnesses and raise her three young children on an annual salary of roughly $18,000. Watch a clip of the HBO documentary Paycheck to Paycheck: The Life and Times of Katrina Gilbert
. Also, find out how the film changed the way Katrina sees herself as a mother.
See more from Oprah and Maria Shriver's town hall.