To learn Joni Mitchell - Cool Water chords, these are the chords to practise in sequence: F#m, E, D, E, G, D, A, Bm and D. I suggest starting at a calm pace of 50 BPM, and as you gain confidence, approach the song's BPM of 101. With G Major as the song's key, tweak the capo to cater to your vocal pitch and chord likes.