Charlie Sheen is opening up about some of the most difficult moments of his past while reflecting on his battle with addiction.

In his new memoir The Life of Sheen, the Two and a Half Men actor shared how his father, Martin Sheen, once turned him in to authorities for violating probation back in 1998. 

At the time, Charlie said it felt like “the biggest betrayal you could possibly endure.”

He explained during a conversation with Michael Strahan on Good Morning America that while he later came to understand it as an act of love, in that moment it was devastating. 

“It’s hard to ask for help when somebody else has raised your hand for you,” he admitted, adding that it was part of his struggle with wanting to always stay in control.

Martin Sheen made the difficult decision after his son overdosed on cocaine in May 1998, which had already extended Charlie’s probation from a 1997 assault plea.

Speaking to AARP The Magazine years later, Martin explained that he felt going to the authorities was the only way to push his son toward change, saying, “That was the wedge; that was the leverage I had. That is what I took to the court; that’s what I took to the sheriff. It was the only way I got him.”

Charlie is also addressing the way his past impacted those closest to him as Netflix prepares to release a new documentary, aka Charlie Sheen, on September 10. 

The film features appearances from Denise Richards, Chuck Lorre, and his former Two and a Half Men co-star Jon Cryer, who reflects on what it was like watching Sheen go through his darkest period.

Responding to Cryer’s comments, Charlie told PEOPLE, “It was really cool to hear from his perspective. He was in the line of fire with all that stupid s*** going on, and it was affecting him and his family and his career and all that. I can’t debate anything that he said.” 

He also shared that Cryer was one of the most compassionate people toward him during that time.

The Netflix documentary will give fans a closer look at Sheen’s journey, while his memoir offers his own perspective on the struggles and lessons that shaped him.