Hello either a person lives a life of devotion to Christian principles, or he doesn’t. We go to church to learn a way of life according to God's will; you make the decision once we learn by finding out what they are and then do them and practice them every day, James 1:22-25. Keep your mind on the principles and try to follow them as best you can. Keep doing them for as long as you want to. However Christian principle are not meant to be taken up for a short time but for the reminder of your life. When you take up the principles you will need to make changes in your life, Ephesians 4:20-24. The best thing to do is actually make the changes and keep doing it until it finally happens, or enlightenment comes, Romans 12:2.