You are right on!
1.Purgatory does not exist, is not in the Bible, and nullifies Jesus' sacrifice for us on the cross. If purgatory were true, Christ died for nothing, because that would mean that we could go to purgatory and pay for our own sins. Purgatory negates the death, burial, resurrection and ascention of Jesus Christ. There is NOTHING we can do to add to or detract from Christs' atonement for our sins. Ephesians 2:5 "For it is by grace you have been saved, through faith-and this not of yourselves, it is the gift of God-not of works, so that no one can boast".
2.Praying to saints and to Mary. Only God is omnipresent and omniscient and can hear the prayers of each indiviual who is praying at the same time. We do not need the "help" of the saints and Mary to reach God. Jesus taught us to say "Our Father, Who art in heaven..." NOT "saint whoever".
3.Mary is not co-redemptress. She was not "the immaculate conception". Neither was her mother. Both women were born the ordinary way. The ONLY ONE who was ever conceived without sexual relations was Jesus. She is NOT "The queen of heaven". She is the mother of the humanity of Jesus. She is NOT the "Mother of God"
4.The bread and the wine do not turn into the actual body and blood of Jesus. Luke 22:19 "This is my body."...Jesus is standing in his body. The bread He is holding cannot be His body. It MUST be a SYMBOL of His body. "This cup is the new covenant in my blood.".....Jesus is standing with His blood coursing through His arteries and veins. Therefore the wine MUST be a SYMBOL of His blood.
5."There is one mediator between God and man, the Man Christ Jesus". Our sins are to be confessed to God through Jesus, not to a priest. "Our Father, who art in heaven, hallowed be thy name, Thy kingdom come, thy will be done on earth as it is in heaven. Give us this day our daily bread, AND FORGIVE US OUR TRESPASSES AS WE FORGIVE THOSE WHO TRESPASS AGAINST US." No priest involved. Jesus did not teach to confess to a priest, but to God in Jesus name.
6.There is no such thing as "Holy Water". Tap water is still tap water even if it has been "blessed" by a priest. Holy water will not create miracles such as healing of people. Only God, through the power of the Holy Spirit has the power to heal. The "blessed" water has no special properties.
7.Peter was NOT the "first pope". The "Rock" that Jesus refered to as the rock upon which He will build His church was Peter's confession,"Thou art the Christ, the Son of the living God", not Peter himself. Peter's name means 'pebble'. The confession is a 'boulder'.Christ's church is built upon the confession.
8.The pope is not the "Vicar of Christ." He does not represent Christ on earth. He is not infallible, whether he speaks "in the chair", or ex cathedra, "out of the chair".Church doctrines that are based on his pronouncements are invalid because they do not have the power or authorship of God.
9.Jesus is not still on the cross as your crucifixes depict. He is risen, the cross is empty. His sacrifice was "once for all". He is not being continually sacrificed. He sits at the right hand of God interceding for the saints. He is not on the cross.
10.The word "saints" refers to all Christians, not to certain "holy" people. Paul continually refers to us as "saints" There was no such thing as 'canonization' of saints at that time. All Christians are living saints.# pope/pontiff ... not Biblical. (Julius Caesar was Pontifex Maximus in 63BC)
11. nun ... not Biblical. (not found in scripture)
12. celibacy of priests/nuns ...not Biblical. (church leaders urged to have wife and children)
13.rosary beads ... not Biblical. Vain repetitions. (from Chaldean religion - Babylonish)
14. icons & statues ... not Biblical. (idolatry & graven images forbidden)
15. novenas ... not Biblical. (scripture teaches against "repetitions" & superstition)
16."hail Mary's" ... not Biblical. (scripture teaches against "repetitions")
17.Beatification ... not Biblical. (no such ritual in scripture)
18.infant baptism ... not Biblical. (False security.. baptism is for believers)
19.Inquisitions ... not Biblical. (burning Christians alive at the stake is not scriptural)