Baptism is the normal way that a person begins life as a disciple. If you are not baptized, baptism will wipe away all sin from your life and restore your relationship with God. (cf Matthew 28:19) It is possible that you can be a follower of Jesus, though you might not yet be baptized. If that is the case, it’s strongly recommended that you learn more about baptism, by speaking to a Catholic priest or lay minister. It is also possible that you were baptized as an infant but have never had the chance, as an adult, to ratify the decision of your parents. Perhaps you would like to freely choose that now.