Practiicing a moderate healthy lifestyle, such as eating a healthy and balanced diet, regular exercise, sleeping 6-8 hours a day is a good start to attain balance physically.
Another aspect which is very important is the spiritual. To attain balance spiritually, we have to believe in someone who is superior to us in every human aspect and this person is "Jesus Christ" whose deeds and words teach us how to achieve balance on Earth.
And one important command he gave us is to search for the kingdom of God while we are on Earth. This implies living a life in austerity without indulging ourselves with the pleasures of the flesh, but instead indulge with the pleasures of the spirit.
Following a life in austerity can lead you to find your spiritual self. Once you find it, you'll find balance in your life.