4) Make the profession of faith for converts from the Council of Trent, which is below. If there is a specific sect to which you belonged, or if you believed in a specific heresy, add at the end that you also reject that heretical sect or heresy. The Council of Trent’s Profession of Faith for Converts
Please read this section on Catholics who had no access to Catholic priests and avoided non-Catholic priests (link to section);
For those who have received baptism, it is slightly different:
1) Know and believe the basic catechism (i.e. the basic teachings) of the traditional Catholic Faith. PLEASE READ THE CATHECHISM NOW One should also immediately begin to pray the Rosary each day (15 decades preferably). If you don’t know how, consult the How to Pray the Rosary section of our website. Always take time every day to read and study the Faith, and ask God for final perseverance.
2) Hold belief in all the traditional dogmas of the Church and the correct Catholic positions against the post-Vatican II sect(covered in detail in our material), including, for example, the dogma Outside the Church There is No Salvation (without exception), the Trinity, the Incarnation, the Papacy, Papal Infallibility, the necessity of water baptism, etc..