Emo rocker Pete Wentz has called his infant son the “greatest accomplishment” of his life.

The 29-year-old, who suffers from bipolar disorder and has confessed to attempting suicide in the past, credits his wife Ashlee Simpson and their son Bronx Mowgli with changing his life for the better.

“With marriage and fatherhood, I’ve finally found two fixed points in my life,” Pete said in an interview with Britain’s Live over the weekend.

“They’ve taught me patience. They’ve also taught me that I don’t need to feel guilty about being happy. My emotional seasons are less extreme,” the star of music’s Fall Out Boy added.

“Until I became a dad I never knew peace of mind. In the past my brain would never stop. Now I’m a father the world no longer revolves around me. When I’m with Bronx, he’s got my complete attention. He’s the only thing that occupies my thoughts.”

“It fascinates me to speculate on what he’s thinking and feeling at any given moment. I also love to speculate about what kind of man he’s going to become. He could be another Neil Armstrong or Christopher Columbus. Who is he going to fall in love with? What’s his hair going to be like when he’s 15? Then, while I’m fantasising about all this stuff, he’ll go to put his hand in his mouth and end up smacking himself in the eye. He’s the single greatest achievement of my life.”