1 Corinthians: Epistle To The 21st Century

Have you ever had the "What if's" about your Christian faith? What do you do when doubt attacks, and you feel that perhaps it is Christianity that is wrong, that maybe this is all a delusion, a psychological trick you have been playing on yourself? What do you do when you feel that the record of Scripture is merely a collection of myths and legends, as we are frequently told, and that there is no life after death, there is no God, no judgment, etc.?