The Culture Club singer was previously sentenced to four months in prison after being found guilty of falsely imprisoning a male escort, who he also beat with a metal chain.
He was also ordered to undertake community service in New York for wasting police time in 2006.
George explained that he had been reluctant to "grow up" in the past, and believes that his issues would never have happened to David Bowie.
He told Vogue: "In prison, I was like, 'This is my fault I'm here now'. In New York, when I swept up the streets of Chinatown during my probation, I remember I was saying, 'This would never have happened to [David] Bowie'. I always thought I would be reasonable at 40. It took me seven more years, but now I control my life.
"The most important thing to me over the past five years is that I grew up. A confession that I would have never imagined before. The idea was like a capitulation. I hated that.
"I want to stay immature forever. There is a real power when you grow up and it was like a revelation for me."
Boy George recently urged Adele to quit smoking in order to save her singing voice.
He is rumoured to be appearing in January's Celebrity Big Brother, for which he has reportedly demanded £1 million.
Watch the video for Culture Club's 'Church Of The Poison Mind' below: