Affleck, 42, said he evolved as an actor over the period of time, reported New York Post.
"I think for me there's the idea that, 'Oh, he was callow and foolish in his youth and has sort of learned the error of his ways and has redeemed himself and is now like, maybe, a person of substance.
"But it wasn't that I was lost and now I'm found. It was because we grow up. We kind of evolve," he said.
These days, the 'Gone Girl' star says he is taking the 'downs' in stride with the 'ups'.