Charlie Sheen doesn't believe in rehab. The 'Anger Management' actor had an erratic 2011 - even though he successfully completed home treatment for substances and alcohol, he said rehab is not for him. Charlie, who is now drug free but still drinks alcohol, told 'Good Morning America': ''I don't believe in rehab anymore. It's not for me. It's not a one-size-fits-all and it didn't fit me.'' ''We live in a country where it's always Miller Time so what are you going to do? It's happy hour somewhere in the world.'' Charlie does regret some of his outbursts, Charlie's new series, 'Anger Management', sees him portray a therapist, and he drew on his own experience for the show.  ''It's a crazy character study on some level that will hopefully be valuable in the future.'' Charlie also said he is keen to concentrate on being a better father in future to his five children.