"When do you feel joy, apart from when you're with your family?" Matt Sturniolo had no idea. Growing up as a triplet, Matt's identity was shared. Every opinion, every decision-he ran it past his brothers, Nick and Chris, first. Now, to millions of YouTube followers, Matt is the quiet and witty Sturniolo triplet. But what fans don't see is the anxiety that's been with him since childhood-the overwhelming fear of being away from his family, the panic attacks that once made him bolt from a Little League game, and the "little red pills" that turned him into a zombie. For years, anxiety wasn't just something Matt had-it was who he was. In What Happened Yesterday, Matt unpacks his past: therapy, learning to drive, viral fame, and a house fire that nearly changed everything. With dark humor and raw honesty, he shares what no video could ever capture.

But this is not a sob story. It's a reminder that progress isn't always some huge life-changing moment. Sometimes, it's as small as standing in a grocery store alone or making it through an entire school day without running for the door. As Matt's mom always told him: Yesterday's problems shouldn't affect today. Because what once felt like mistakes or painful experiences . is simply what happened yesterday.