Dont worry about anything, instead pray about everything. Tell God what you need, and thank him for all he has done. Then you will experience God’s peace, which exceeds anything we can understand. His peace will guard your hearts and minds as you live in Christ. Phillipians 4:6-7
God;s peace does not come from what or who we are, but from what God has done- how he has justified us in response to our faith. But we cant have this transforming effect if we are fighting with God, resisting His plan and purpose for our lives, then we wont experience this supernatural peace.
You cant have the peace of God until you first have with God.