"Everything I Wanted" received mainly positive reviews from critics, several of whom praised the music and lyrics. The song was commercially successful, reaching number eight on the US Billboard Hot 100, becoming Eilish's second top-ten hit in the United States. It debuted at number one in the record charts of several countries, including Ireland and Norway, and peaked at number three on the UK Singles Chart. "Everything I Wanted" has received several certifications, including triple platinum in Australia, and double plantinum in Canada and the United States. On November 24, 2020, the song received nominations for Record of the Year, Song of the Year, and Best Pop Solo Performance at the 63rd Annual Grammy Awards, making it Eilish's second consecutive year for earning a nomination in such categories.
Eilish directed the song's accompanying music video, which was uploaded to her YouTube channel on January 23, 2020. The video depicts Eilish and Finneas holding hands while driving through the city in a Dodge Challenger and into the ocean; it received positive reviews from critics, many of whom praised its visual theme and message. Eilish has performed "Everything I Wanted" live several times; it was included on the setlist of her When We All Fall Asleep Tour (2019) and Where Do We Go? World Tour (2020). Eilish and Finneas performed the track during a 50-minute livestream for Verizon Communications in April 2020.