Known as the "Catfish" host exposing secrets of people in online relationships, Nev Schulman has recently revealed details of his secret past.

In his upcoming tell-all book titled "In Real Life: Love, Lives and Identity in the Digital Age," Schulman talked about his "long and illustrious career as a juvenile delinquent," Radar Online has learned.

"My real problem was stealing. I stole DVDs from Tower Records, clothing from Ralph Lauren, and a host of other miscellaneous items," wrote the 29-year-old New York native who admitted to selling drugs and breaking into a restaurant and stealing all the liquor in the past.

As a high school freshman, Schulman was suspended from high school for waving condoms around in class and was kicked out for swiping a WiFi card from his computer teacher's desk.

While in college at Sarah Lawrence in New York, Schulman was involved in car crashes wrecking a 1980 Porche after falling asleep at the wheel, a Harley-Davidson after going too fast on vacation, and a 1992 Acura Legend.

"It's probably a miracle I'm still alive," Schulman confessed. "I was on the outs with everyone. I disappointed my family; I infuriated authorities; I pissed off half the kids at my school."

Seeking attention and a sense of value, Schulman started an online relationship with a 19-year-old ballet dancer named Megan, who turned out to be a middle-aged Michigan woman named Angela, who created at least 14 fake Facebook profiles, CBS News has learned.

This inspired his 2010 independent film titled "Catfish," which eventually became a popular TV show.

Aside from giving details to Schulman's secret past, "In Real Life: Love, Lives and Identity in the Digital Age" also includes pieces of advice from the "Catfish" host.

With approximately 83 million fake Facebook profiles, Schulman told MTV "showing your scars is key" when meeting new people online.

"If you really want to build trust with people, and you really want them to respect you, they have to know that you've made mistakes and that you've learned and grown, that you started out backwards and crooked just like everyone else. People should do that more online and off," Schulman said.