'G'  The first chord I  got familiar and  comfortable with 

'E'  The second chord I got familiar and comfortable with

'D'  I came across ​the 'drop d' tuning and melted.

Over a lifetime of playing, the chords G E D, in that order, only

means...        

              GUITAR  EVERY  DAY...

acoustic guitar

 fingerstyle  /  

new acoustics

               Thomas Mark Benoit