 As a believer, your responsibility is to abide in him, he'll produce the fruit. As a believer, it's your responsibility to repent of sin and to confess those things to God, and he will continue the project of making you holy from day to day. He is the one who sanctifies. He is the one who makes holy. He is the one who transforms our nature day by day, step by step. When we get in the Word, when we are in worship, when we pray, when we fellowship with other believers, slowly but surely the Holy Spirit is carving that image of Christ into your very life.