Careful, fren.

Paul (formerly Saul) was chosen by Jesus Christ Himself (Acts 9:3-6)

Now as he went on his way, he approached Damascus, and suddenly a light from heaven shone around him. And falling to the ground, he heard a voice saying to him, “Saul, Saul, why are you persecuting me?” And he said, “Who are you, Lord?” And he said, “I am Jesus, whom you are persecuting. But rise and enter the city, and you will be told what you are to do.”

Paul's authority was authenticated by miracles (Acts 19:11-12):

And God was doing extraordinary miracles by the hands of Paul, so that even handkerchiefs or aprons that had touched his skin were carried away to the sick, and their diseases left them and the evil spirits came out of them.

It's not Paul that seems to be a problem for you. It appears more like a rejection of Holy Scripture because you don't like what it teaches.

Ask God for understanding and seek out commentaries on Paul's writings.

If you need help getting started, here's a commentary on Paul's letter to the Roman Christians.