Trying to convert to Catholicism but have a few questions?

May I suggest you watch Catholic television station EWTN. Remember the Catholic Church can only exist through the authority of Matthew 16: 18-19 and receives additional authority to formulate dogmas/doctrines from Matthew 18:18. The Catholic Church regards all of scripture as the living Body of Christ Himself. It accepts all of scipture and is not allowed to ignore nor to reject any of scripture.