So some time in the past you were received into Holy Orthodoxy by Chrismation in a Church of the Antiochian Archdiocese.
Is that correct?
And now you are considering leaving Orthodoxy and coming into full communion with the Catholic Church.
Is that correct?
If both of those are true and you want to come into full communion with the Catholic Church then you would approach a Catholic parish priest with your request. You would come into full communion with the Catholic Church by the Holy Mysteries of Penance and Holy Communion. That can happen in a Latin Church or an Eastern or Oriental Catholic Church. Wherever it happens it would be noted in the parish record that you are coming in as an Eastern Catholic. You would not be a member of the Latin Church although you can freely worship in any Catholic Church and receive the Holy Mysteries other than marriage and holy orders in any Eastern or Oriental Catholic Church or Latin Church with no special permissions.
Then you would be a member of the Catholic Church. You would no longer be an Orthodox Christian and you would no longer be able to receive the Holy Mysteries of an Orthodox Church, with some exceptions which you will see posted by folks like Alexander Roman, ciero, Aramis and others in the EC Section.
What is it that causes you to want to leave Holy Orthodoxy and come into the Catholic Church? Have you discussed this with your priest?
I’m not sure why you have posted this thread here in the Traditional Catholicism Section. It seems like it belongs in the EC Section.