You have not been taught Truth. You're talking about confusion and reincarnation and nonsense and nothing Scriptural.
The Great Tribulation has not occurred yet. If it had, then by the OT and NT timeline, we wouldn't even BE here discussing it because the entire earth and the "elements would have melted with fervent heat".
Jesus said of Satan, "He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it".
John 8:44
Satan is a clever liar because his lies sound so much like the truth. He wants to change your thought processes in order to deceive you and destroy you. He is not only the father of lies, but he lies about the biggest subject...God.