For special stages in a human being's life, there is a sacrament instituted by Jesus Christ himself, to help us.
Baptism - takes away original sin and makes us children of God
Confirmation - gives an outpouring of the Holy Spirit, which strengthens us
Eucharist - is the very sacrifice of Jesus' body and blood. In this sacrament we receive, not bread, but Jesus Christ himself
Confession – reconciles us with God after we have sinned, and strengthens us
Marriage – establishes the union of a man and a woman for life, for the spouses' sanctification, and for the generation and education of children
Holy Orders – enables a man to act in the name of Christ, to preach, to celebrate the sacraments, and to be a shepherd (performed by the bishop)
Anointing of the Sick – gives comfort, peace, courage, and the forgiveness of sins