One of the wonderful blessings every new believer in Christ enjoys is knowing that he has a new beginning in God with the power to live right. He then starts learning how to leave the bad things for the good. But there's something even better, and that's leaving the good, not just for the better, but for the best!
As you progress in your Christian growth and mature in Christ, you won't be the one being told to stop fighting, telling lies, or stealing. You should be thinking of increasing your commitment to and involvement with the things of God. In 2 Corinthians 5:14, Apostle Paul said, “…The love of Christ compels us….” In other words, the love of Christ in you controls and restrains you from doing certain things that, even though aren't outrightly wrong, aren't the best for you. This restraining power is in you by the working of God's Spirit.
God's plan is for you to be effective in everything you do. He wants you to grow up and learn how to handle life. You can actually watch yourself grow and develop in the things of God, and as you give yourself to God's Word and operate in it, it'll move you onto the next and higher plane of life.