The Devil still tempts baptized people. But Jesus is the helper of every believer. Jesus promises that when we are tempted, He will help us so we will not sin. Baptism does not guarantee salvation . Baptism is the beginning of Christian fellowship and growth.
True baptism is a symbol that our sins have been forgiven and forgotten.
True baptism brings a person into the family of God. Then the child of God will live a life that gives God joy. Babies cannot know the truth and repent. God does not want babies baptized. Anyone who baptizes babies is going against God's plan of baptism.