Though God does not make use of any means besides Himself to bring about regeneration, He does work through means in our sanctification, the process of growing in personal holiness. Scripture read and preached, the sacraments, prayer, and so on are all means that the Lord uses to mature us in Christ. When you engage in one of these activities, ask God to make you aware of how it can be used to conform you to the Savior.
For further study:
The Bible in a year: