During adolescence, Barrett felt alienated, being the only Puerto Rican, and one of the few children being raised by a single mother, following the divorce of her parents.

In February 2021, Barrett released the track "La Di Die", which explores the downfalls of fame with Jxdn, produced by Travis Barker.

[12][13] Her debut EP, Pretty Poison, containing seven new tracks, was released on September 10, 2021, coinciding with World Suicide Prevention Day.

The song is dedicated to her both her Mom, and her best friend, Cooper Noriega, who had recently died as a result of an accidental drug overdose.

[16] In December 2022, she announced her Young Forever Tour featuring Isabel LaRosa, playing twenty shows starting in February 2023.

Barrett cites Arctic Monkeys, Lana Del Rey, Melanie Martinez, and the Neighbourhood as influences on both her sound and her aesthetic as a musician.

[20] At 17, after initial objection from her parents, she ran away from home to live in Los Angeles, where she expected more career opportunities.

[5][21] She attempted suicide again in 2022 following the death of her best friend Cooper Noriega, a fellow TikTok star, of an accidental drug overdose on June 9, with her manager then admitting her to a psychiatric hospital.

[22] In an interview with Zach Sang, Barrett proclaimed that her Christian faith helped her through her mental health issues and the death of Noriega.

[24] She began dating fellow social media star Josh Richards in November 2019; they broke up in March 2021.