/ How was I to know I'd miss you so? / Loneliness up ahead, emptyness behind / Where do I go?" During the chorus, she realizes that she has lost her true love, stating, "From the bottom of my broken heart, even though time may find me somebody new / You were my real love, I never knew love, till there was you." According to sheet music published at musicnotes.com by Universal Music Publishing Group, "From the Bottom of My Broken Heart" is composed in the key of G major and is set in time signature of common time with a slowly tempo of 76 beats per minute. The single's B-side, "Thinkin' About You", is also a teen pop influenced song. The song is composed in the key of G major and is set in time signature of common time with a moderate tempo of 96 beats per minute. Spears vocal range spans over two octaves from the low note of G3 to the high note D5 Craig McDennis of The Hamilton Spectator said the lyrics of "Thinkin' About You", along with "Born to Make You Happy", "verge on the sort of boy-worshipping dreck that even Tiffany would have sniffed at", while Jane Stevenson of Toronto Sun noted Spears "puts some rather grownup heartfelt soul into [it]". Critical response "From the Bottom of My Broken Heart" received mixed to positive reviews from music critics. Amanda Murray of Sputnikmusic considered the song a competent, but unremarkable single. Kyle Anderson of MTV criticized its lyrics, deeming it as "another rejection ballad that references kissing but nothing else". Caryn Ganz of Rolling Stone called "From the Bottom of My Broken Heart" a "further hit" from ...Baby One More Time, along with "Sometimes" and "(You Drive Me) Crazy". The song was a Track Pick from the AllMusic review by Stephen Thomas Erlewine, who praised it along with the other singles from the album, saying, "...Baby One More Time has its share of well-crafted filler, but the singles, combined with Britney's burgeoning charisma, make this a pretty great piece of fluff". Author David Gauntlett considered its lyrics as "slushy", and noticed that the track was "seen as less interesting and relevant [by the fans], although [they] clearly enjoyed [the song] too". Billboard critic Chuck Taylor praised the song, and did a further review on his column: "'From the Bottom of My Broken Heart' possesses a