Actually, in my Rosary which I pray every, the contents of it directly derived from the New Testament, primarily the Gospels. Let me break it down for you:
The Five Joyful Mysteries
1). The Annunciation to the Blessed Virgin Mary. Luke 1:32,38.
2) The Visitation. Luke 39-43
3) The Nativity of our Lord Jesus. Luke 2:7
4) The Presentation of our Lord Jesus. Luke 2:25-32
5) The Find of our Lord Jesus. Luke 2:46-50
The Five Luminous Mysteries
1) The Baptism of our Lord Jesus. Matthew 3:13-17
2) The Revelation of our Lord at the Wedding of Cana. John 2:2-10
3) The Proclamation of our Lord Jesus of the Kingdom of God and his Call for our Conversion. Mark 1:14-15
4) The Transfiguration of our Lord Jesus. Luke 9:28-35
5) Our Lord Jesus gives us the Eucharist. John 6:51-57
The Five Sorrowful Mysteries
1) The Agony of our Lord Jesus in the Garden. Mark 14:32-38
2) The Scourging of our Lord Jesus at the Pillar. John 19:1
3) The Crowning of or Lord Jesus with Thorns. Mark 15: 17-19
4) Our Lord Jesus Carries the Cross to Calvary. John 19:18
5) The Death of our Lord. Mark 15:33-38
The Five Glorious Mysteries
1) The Resurrection of our Lord Jesus Christ. Mark 16:6-7
2) The Ascension of our Lord Jesus. Acts 1:7-9
3) The Descent of the Holy Spirit. Acts 2:2-3
4) The Assumption of our Blessed Mother. 1 Thessalonians 4,14
5) The Coronation of Mary. Revelation 12:1
Now, since this all comes straight from the Bible, I have no problem with it.
Although some of my fellow Catholics don’t like when I say that marriage among the clergy is permissible. 1 Timothy 3:1-7 and that you do not have to confess your sins to a priest, James 5:16, you can confess them to others.
It seems you are a student of the right subject matter but with wrong teachers at the wrong school.