Sheen was fired from popular sitcom Two and a Half Men in March, 2011, following a series of bizarre antics, which began with the star trashing a hotel room in New York the previous September (10).
But it was his public feud with producers and series creator Chuck Lorre which finally cost him his job on the show - and sent the actor on a downward spiral, during which he spent several weeks making crazed public appearances before hitting the road on an ill-advised comedy tour.
And now the TV star, who is currently promoting his new show Anger Management, in which plays a therapist, has opened up about his own road to recovery, confessing it feels good to finally be the advice-giver on TV after being on the receiving end for nearly 12 months.
During an appearance on U.S. breakfast show Good Morning America on Monday (25Jun12), he said, "It's nice to be in the chair and not on the couch."
Sheen revealed the counselling sessions were invaluable because they helped him realise two important life lessons - how to walk away from a heated situation and eventually let things go.
He continued, "The I advice I got when I was in anger management, myself, personally - because I was in anger management for about a year - is that you can always leave the room... (and to) just stop being so damn angry... (My) biggest regret is going a little too far...
"I was so vocal about people I shouldn't have been that vocal about... Even though I was right and there were a couple things they did that were wrong, there was still a way to go about it that was a little less than that."
The actor has since sworn off drugs and cleaned up his life - and Sheen admits he's just lucky to be alive.
He adds, "It is odd to look at some of the clips and some of the stuff and think, 'That was me. Wow!'... I'm grateful that we're able to sit here to talk about it and you're not just talking about me, because I'm not here."