Rebbeca Marie Gomez was born on March 2, 1997 in Inglewood, California. She is the daughter of Alejandra "Alex" and Francisco "Frank" Gomez. All four of her grandparents are from Jalisco, Mexico, while her parents and most of her family were born in the US. Gomez has two brothers, and a younger sister. In December 2017, she revealed she has a half-sister who was eighteen years old. Gomez grew up in Moreno Valley, and at the age of nine her family lost their home and moved into the converted garage of her grandparents' house due to financial problems. Gomez began working part-time jobs to help support her family, doing commercials and voice over work. She had what she described as a "mid-life crisis" when she was nine years old, and decided she wanted to pursue a music career. She was quoted as stating "That was literally my mid-life crisis when I was nine years old. That's when I felt like, 'OK, I gotta get my life together. What am I gonna do?' I pushed that on myself at a younger age than the average kid because at the time my family had lost our home. I've always been more mature for my age, so I was already understanding what they were going through. And I just thought, 'How can I help them?'" She initially attended public school, though had to undergo home schooling due to issues with bullying. She claimed that at one point she was jumped by multiple girls while in the restroom, and was a frequent target due to her jobs in the entertainment industry.