First, Pray often.
Read the Sermon on the Mount. Then read it again and again...
Read through St Augustine's City of God (it may take four years). Augustine said, "As far as this mortal life is concerned which is lived out and ended in a few days it matters little under whose rule a human being marked for death lives so long as those who govern do not force him to impiety and sin."
Turn off the news.
Pray some more.
Read a portion of The Imitation of Christ daily and try to practise humility.
Remember the Lutherans: they teach that church and state really don't have much to do with each other.
Pray for my enemies.
Stay active in a church that cares about social justice issues.
And do something about it in the local community.
Laugh. A lot.
Have a glass or two of wine handy.
Be surprised at how fast the years go by.