What does ‘sober’ even mean?

We generally associate ‘sobriety’ with alcoholics or drug addicts; people that have addiction issues ruining their lives, and who decide to abstain entirely from a chemical intoxicant. But what I mean by ‘sober’ is a bit different, and goes beyond just saying “no” to liquor; I mean to identify all the things that prevent me from reaching my goals, and saying ‘no’ to all those things, as best as I can.