I wrote this in my diary the other day, and although it's not perfect I decided to share it anyway.
"The throne of God is at the centre of the universe, and empires and emperors are among the creatures of the outer circle who exist to give praise to God."*
This sort of gave me a new perspective on things: I exist to give praise to God.
Everything I do: The way I act, dress, talk, and think, all of these things should give glory to God. They should be evidence that my life is about giving praise to God.
If I say crude or perverted things, yell at my brother or sister, talk back to my mum, say something negative to/about a friend or myself, or bludge when I should be working or studying, then how is that going to give praise to God?
If my life is about giving praise to God, then I should be saying wholesome, encouraging things, speaking kindly to my brothers and sisters, respecting my parents, encouraging friends, refusing to say negative things about people and about myself, and believing that everyone (including me) is precious in God's eyes.
This would then prayerfully change how I feel about my family and friends, and how I react to them and speak to them. People should see a definite difference in my life, I would know that my worth is in God, and all of that would be bringing praise to God.
* Quote from "The God I Don't Understand" by Christopher J. H. Wright. pg. 64