What changed my mind in my early twenties was reading facts about history, especially Solzhenitsyn's Gulag trilogy. That destroyed forever my belief that socialism was good and capitalism was evil. I knew that Stalin was evil, but like other fools I wanted to believe that socialism could be reformed. Von Hayek and Solzhenitsyn proved that it was a deadly evil, and the worst done by greedy capitalists does not approach the evils done in the name of socialism.
And neither of them are read, taught or even mentioned on the American university campus of the 21st century. What does that tell you?