Pink - Sober Lyrics Meaning
My thoughts on this song is it is more than simply about drugs or alcohol... it relates to many things in any person's life that a person can allow control them... (relationships, as well as drug, alcohol, hobbies, etc).
-- note the video and her various forms of herself, as she conflicts with herself, ignores herself, is annoyed with herself, passionate with herself, then abandons herself. These are all levels of conflict a person has when they battle any challenge/situation/relationship in life (again could be relationships, substance etc)
When a person gets so wrapped up in something they end up not being themselves, they end up isolating themselves, and losing their own identity.
As someone breaks free of any addiction (relationship or otherwise) they have a hard time realizing they can be happy, how they will cope and function while being in touch with reality, pain, and joy. This song celebrates breaking through to "sobriety" from those conflicts, and being herself -- finding herself.