Steve-O says it was a "crisis" when he initially faced the prospect of being sober.
The 'Jackass' star has been without drink or drugs for nearly 14 years after his co-star Johnny Knoxville and others had him involuntarily committed to a psychiatric ward in March 2008, after he sent an email saying he was planning to jump out of a window.
Opening up about his sobriety in a new interview, he said: "Most people would be delighted to hear that they’re actually not going to die in their early 30s. It came to me as a crisis.
“I was confronted with the most terrifying possibility: I was only, like, halfway through my life."
Steve-O has also reflected on how he was once near-broke and didn't know how to make any more cash, and one of the only things going for him at the time was he could inspire people to shout: "Oh s***, it's Steve-O."
He added to Men's Health magazine: "The ultimate fear for me would be to be a recognisable personality and totally broke."
In December, Steve-O revealed he was launching his own X-rated website to share his own "explicit" content.
Asked if his adult platform 'Steve-O Raw' would feature pornography, he said at the time: "That depends on how you define pornography.
“This page hosts all of my explicit, uncensored content, and there’s a lot of that."
Steve-O decided against joining a pre-existing platform like OnlyFans as he wanted more control.
He explained: "On OnlyFans you have to pay to unlock each piece of content, and there’s no live-streaming.
"On my page, everything is already unlocked and playable once you’ve subscribed, and I have live-streaming, as well as regular giveaways and contests.”
Tagged in Steve-O