Taylor Swift Reveals Her Mother Is Still Fighting Cancer

ARLINGTON, TX - APRIL 19:  Honoree Taylor Swift (L) accepts the Milestone Award from Andrea Swift onstage during the 50th Academy Of Country Music Awards at AT&T Stadium on April 19, 2015 in Arlington, Texas.  (Photo by Cooper Neill/Getty Images for dcp)

Credit: Cooper Neill

Credit: Cooper Neill

ARLINGTON, TX - APRIL 19: Honoree Taylor Swift (L) accepts the Milestone Award from Andrea Swift onstage during the 50th Academy Of Country Music Awards at AT&T Stadium on April 19, 2015 in Arlington, Texas. (Photo by Cooper Neill/Getty Images for dcp)

Taylor Swift just did a rare piece with Elle Magazine opening up about what 30 things she learned before 30 [years old].

One of those things basically was that she's realized to focus on the more important things in life and not to sweat the small stuff, stating "I've had to learn how to handle serious illness in my family. Both of my parents have had cancer, and my mom is now fighting her battle with it again. It's taught me that there are real problems and then there's everything else. My mom's cancer is a real problem. I used to be so anxious about daily ups and downs. I give all of my worry, stress, and prayers to real problems now."