Charlie Sheen Opens Up About Being a Single Dad to His Teenage Twin Boys (Exclusive)

Charlie Sheen's life now is a far cry from what it looked like in 2013, when neither he nor his ex Brooke Mueller were able to care for their then 4-year-old twin boys Max and Bob, and they were temporarily placed in the care of Sheen's ex-wife Denise Richards.

But now the boys live full-time with Sheen, who is six years sober, and the actor, 58, tells PEOPLE that he now devotes the majority of his days to "doing single dad stuff."

"I've mostly been raising my 14-year-old boys," he says of life lately. "Their mom has been trying to figure some stuff out on her end, so she's not in the picture too much right now."

He says the kids are doing great. "They're really cool, really smart, and really funny."

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A rep for Mueller declined to comment when reached by PEOPLE.

Still, he's facing one very common parenting problem: teen screen addiction.

"You know, the time spent worshipping their devices..." he says with a laugh. "Although on the flip side, when they're doing that it gives me a little time to not be dragging them all over the city. But I also feel like the screens detract them from having other opportunities to expand their minds in other areas."

He does note that Bob won a horror movie directing competition when he was 8, and Max plays guitar. "So they're into some cool stuff that isn't just Fortnite."

He also notes that kids don't care that he's an actor — one, who, at the height of the popularity of his hit show Two and a Half Men was earning $1 million per episode.

"It doesn't matter, whatever we're doing that might be important and connected to our job, or some high brow moment of responsibility, the kids don't care," says the Major League actor.

"The other day I was in the dental chair having a filling replaced, and Max comes up to me and asks me if I have a gift card for a game he wants to buy on his phone. It's like, when has he ever seen me walking around with a gift card? I don't game! I'm not remotely connected to the gaming world, other than trying to manage and supervise their time doing it."

Still, he's endlessly proud of all of his kids (he's also dad to daughters Sami, 19, and Lola, 18, and Cassandra Jade Estevez, 38), also he's endlessly thankful that his own family like dad Martin Sheen and brother Emilio Estevez never abandoned him while he was at his lowest point with drug and alcohol addiction.

"The only times we were ever estranged was by my doing," he says of his family. "Sometimes there's just too much shame to crawl back to the ones that care about you the most. but they never slammed the door on me. It was always, 'We are here when you need us.'"