Not that I have already obtained this or have already reached the goal; but I press on to make it my own, because Christ Jesus has made me his own. Beloved, I do not consider that I have made it my own; but this one thing I do: forgetting what lies behind and straining forward to what lies ahead, I press on toward the goal for the prize of the heavenly call of God in Christ Jesus. Let those of us then who are mature be of the same mind; and if you think differently about anything, this too God will reveal to you. Only let us hold fast to what we have attained. Brothers and sisters, join in imitating me, and observe those who live according to the example you have in us. For many live as enemies of the cross of Christ; I have often told you of them, and now I tell you even with tears. Their end is destruction; their god is the belly; and their glory is in their shame; their minds are set on earthly things. But our citizenship is in heaven, and it is from there that we are expecting a Savior, the Lord Jesus Christ. He will transform the body of our humiliation that it may be conformed to the body of his glory, by the power that also enables him to make all things subject to himself. Therefore, my brothers and sisters, whom I love and long for, my joy and crown, stand firm in the Lord in this way, my beloved. (Philippians 3:12-4:1, NRSV)
Paul continues here telling the Philippians to not worry about the past. To not let past hang-ups or faults get in the way of what God is doing in your life.
You see we have to press forward. We can not stay stuck on the muck and mire we find our selves in but we have to press on towards the goal and the upward call of Jesus. For if we stay we wind up like the enemies of the cross whose god is their belly, feeding their desires and needs now. But God has called us to a higher understanding and calls us to walk with Him and to press forward sharing His love, grace, and mercy everywhere we go.
So press on and know that He is with you giving you strength.