Everyone thinks of changing the world, but no one thinks of changing himself.
If you feel like the world needs changing, the best place to start is with the world immediately around you. The best way to change the world around you is to first change yourself. Prayerfully consider something about you that you need to change. Will the change positively impact the world around you? If yes, then do it.
For the trumpet will sound, the dead will be raised imperishable, and we will be changed.
1 Corinthians 15:52