Here is the full list of all 15 Please Be Happy achievements.
Achieve Juliet's Comfy Ending
Get every (other) achievement!
Achieve Juliet's Wild Ending
Landed a legendary catch with Mr. Kim
Begin Chapter Five (Juliet Route)
Begin Chapter Four (Juliet Route)
Achieve Aspen's Wild Ending
Achieve Aspen's Comfy Ending
Put on a perfect performance with Lena
Made friends with Tommy
Begin Chapter Five (Aspen Route)
Begin Chapter Four (Aspen Route)
Begin Chapter Three
Begin Chapter Two
Begin Chapter One