To start learning 井胧 - 丢了你 chords, build your understanding on these basic chords - F, Bb, C, Am, Dm and Gm in sequence. I suggest starting at a calm pace of 30 BPM, and as you gain confidence, approach the song's BPM of 61. Align the capo with your vocal depth and chord choice, bearing in mind the song's original key: F Major.