To learn Jimmy Eat World - Pain chords, your first step should be understanding these chords - Ab, F, Eb, C, F, G, Cm, F, G, Ab, F and C in sequence. I suggest starting at a calm pace of 42 BPM, and as you gain confidence, approach the song's BPM of 84. Given the song's key of Bb Major, adjust the capo to align with your vocal range and chord preference.