Here are five books suggested by one writer on how to change bad habits. Christians can probably learn a bit from these. The authors probably don’t understand how God works, but they do have a notion about how the mind functions.
“And we all, with unveiled faces reflecting the glory of the Lord, are being transformed into the same image from one degree of glory to another, which is from the Lord, who is the Spirit” 2 Cor 3.18.
God provides us motivation, power, and support to practice the good works of Christ.
And there is the truth of repentance, which is the decision to, and movement toward, change, to stop practicing sin and live in holiness.
Christians have the best chance for change. We glory in Christ Jesus, who makes us children of God and sends his Spirit to transform us.