The song begins with drums, electric bass, and a left-hand piano part, followed by a keyboard riff in the right hand.

Chicago members Peter Cetera and Donnie Dacus performed the backing vocals and sang along with Joel during the bridge and in the outro ("Keep it to yourself, it's my life").

[citation needed] Billboard described "My Life" as "an infectious uptempo tune guaranteeing a good mood for the listener.

"[4] Cash Box said that the "jumpy, upfront beat, keyboards, and acoustic guitar lines back Joel's strong singing" and praised the "musical and lyrical hooks.

"[5] Record World called it a "Top 40 & adult [oriented rock] natural.