Great goal!
Creating harmony has to do with action. Where can you start? Look at the first element which comes to your mind. Instead of thinking about it, just go ahead and do it. It takes courage to go beyond the comfort zone of accepted behaviors. Creating harmony in and around you is taking the sword of a warrior and acting for the good.
Any action can find external resistance but when you act for the good you can feel that you are backed up by an extra power. It is a beautiful cause and direction to aim for. Don't let anyone stop you!
Conscious action is a powerful form of training. Instead of being in rehearsal, and preparing for the show, you jump on stage straight away. Life is your training ground!
Enjoy!