Actor Jason Segel's entertainment career is booming, with starring roles in the films “Forgetting Sarah Marshall” and “The Five-Year Engagement” and the CBS comedy “How I Met Your Mother,” but the actor has had recent problems in his personal life.

According to a Radar Online report, Segel is allegedly struggling with alcoholism and recently began attending Alcoholic Anonymous.

The 33-year-old actor was seen on March 2 at an AA meeting in Hollywood, where he admitted to his addiction troubles.

“I have been sober for 12 days,” said Segel, reportedly telling other attendees that he thought it was time to quit drinking for good.

According to a source, the actor stayed for an hour while listening to other addiction stories.

Segel and “My Week With Marilyn” actress Michelle Williams split after dating one year. Radar Online reported that the actor’s alcohol issues were not the reason for the split.

Instead, long distance was the reason the couple called it quits, a source claimed. Williams lives in New York with her 7-year-old daughter, Matilda, and Segel resides in California.

“While Jason made every effort to make them a priority in his life -- and they were a top priority -- he still couldn’t drop everything and leave his life and career in L.A.,” said the source.

In 2011 the actor was spotted drunk outside a Los Angeles nightclub slurring his speech, talking about the Muppets and joking that his night out would become a “huge story.”

The actor has revealed that he will be releasing a trilogy of young-adult novels. The series is based on a screenplay he wrote and sold when he was 12, VH1 reported. The actor recently bought back the script and is currently in a bidding war with publishers.

“As I got more successful, I kept hoping they wouldn’t realize I was the same Jason Segel as the Jason Segel they bought the script from,” he said.

Segel will also appear in “This Is the End,” a film about the predicted 2012 Mayan apocalypse, with his “Knocked Up” co-stars Seth Rogen, Paul Rudd and Jonah Hill. The movie is due out in theaters June 12.