The structure of the church is such that no human person, including the Pope, is bigger than the Church.
The church has survived for more than 2,000 years now.
The church spends so much on the education of its priests. The priestly formation is a very thorough and rigorous program. To be a priest, you must at least have a bachelor in philosophy and theology. Some formations incorporate psychology, human development, spirituality, and other secular courses.
The record-keeping of the church is top-notch. The original manuscript of all the writings of the early disciples and the Scriptures are all in the possession of the church, properly kept.
If you attend weekly masses for two years, you are likely to have read the entire bible. The scriptural readings taken at mass in your village are the same that was read everywhere in the world that day.
There is order, there is discipline; this is why you can confidently trust the church.
The strength of the Catholic Church is the reason why Christianity will continue to flourish. . . And of course, that strength is a testament to the fact that the Catholic Church was not founded by any human person.