Here is the full list of all 11 Life Lessons achievements.
Completed levels 1-5
Completed levels 6-10
Completed levels 11-15
Completed levels 16-20
Completed levels 21-25
Completed levels 26-30
Finished the game on Normal difficulty
Finished the game on Hard difficulty
You died on level 1. This isn't promising...
You made it through a zone without dying
I mean...what did you expect?