"At the beginning of a new year, many people have nothing better to do than to make a list of bad deeds and resolve from now on—how many such ‘from now ons’ have there already been—to begin with better intentions… They believe that a good intention already means a new beginning; they believe that on their own they can make a new start whenever they want. But that is an evil illusion: only God can make a new beginning with people whenever God pleases, but not people with God. Therefore people cannot make a new beginning at all; they can only pray for one. Where people are on their own and live by their own devices, there is only the old, the past. Only where God is can there be a new beginning. We cannot command God to grant it; we can only pray to God for it. And we can pray only when we realise that we cannot do anything, that we have reached our limit, that someone else must make that new beginning."
Dietrich Bonhoeffer, God is in the Manger
So if anyone is in Christ, there is a new creation: everything old has passed away; see everything has become new.
2 Corinthians 5:17