2 Cor 5:17
Chrisitanity is more of a relationship than a religion. Religions are man's effort, therefore comprise of things to do to be acceptable to God.
What do you do with the inner man?
1 Peter 2:1-2 Feed the spirit that is born again with the word of God. Not prayer, fasting etc. They are good but you need food to grow.
1 Cor 9:24-27 - keep the body under subjection. Your flesh is strong and will convey you wherever it wills unless you keep it under control. Rom 12:1-2 - Present your body ( have control of it to direct it unto sacrificial uses for the LORD). -Be transformed by renewing of your mind.