We get Peace by Prayer, because it's the role of the Holy Spirit to give that peace. He is the great Comforter!
But I tell you, go to pray when you are not in peace is not obvious, it is even difficult, when someone is in distress, pray is the last option he will take, most of the time they will go for their pass time: play, go to bar, have some coffee, watch movies, ... that's when fellowshipping with Christian is really helpful.
So get a Christian as friend, and talk with them when you are not in peace, and they will remind you the promise of God for you, to lead you into the climate of prayer. And when you got there (pray), God will open his heart for you.
But I tell you, go to pray when you are not in peace is not obvious, it is even difficult, when someone is in distress, pray is the last option he will take, most of the time they will go for their pass time: play, go to bar, have some coffee, watch movies, ... that's when fellowshipping with Christian is really helpful.
So get a Christian as friend, and talk with them when you are not in peace, and they will remind you the promise of God for you, to lead you into the climate of prayer. And when you got there (pray), God will open his heart for you.