"It's really great," the actor, 41, tells iVillage exclusively. "It's like I get a whole second chance at life. Before, it was me and my brother my whole life, and that's a very different vibe than I have in my house now. So it's a whole new world -- and it's really cool."
But it's not just his daughters who make his life so special. The family man, who stars in the upcoming film We Bought a Zoo (in theaters Dec. 23), also gushed to iVillage about his wife of six years, Luciana.
"I definitely felt like there was some sense of destiny," Damon says about the moment he met her in 2003 at a Miami bar where she was bartending. So, does that mean he believes in love at first sight? "Yes," he admits. "And I wouldn't have said that before."
Watch our exclusive video interview to find out what one thing surprised Damon about fatherhood and why his job is "definitely easier" now that he doesn't have to audition for roles.