Lindsay Lohan -- 'Worried' About Charlie Sheen

Lindsay Lohan believes Charlie Sheen is in the midst of a "life or death situation" ... and has told friends she's "thrilled" that he's checked himself into a rehab center.

Sources close to Lohan tell us ... Lindsay is "worried" about Sheen because his most recent bender shows "obvious signs of addiction" ... something Lindsay knows about all too well.

But after Sheen decided to check himself into a treatment center Friday afternoon, Lohan is confident he can get his life back together ... if he commits himself to sobriety.

We're told Lindsay "understands the problem of having the wrong people around and wants Charlie to understand that he needs to surround himself with positive, sober people."

Credit: TMZ

Lindsay Lohan -- I'm Done Clubbing! (Seriously)

Stop us if you heard this one before -- Lindsay Lohan is telling her friends she is never clubbing again. As in forever. Forever ever. For reals. Stop laughing.

Sources close to LiLo tell TMZ she is "completely over the club scene" -- no more "I'll just have water, thanks" -- and realizes that cutting it out completely is the best chance for her to avoid temptation and remain sober.

We're also told the no clubbing pledge extends to her friends as well -- as in she's going to stop hanging out with the people that only used her to party.

Which pretty much only leaves her trainer and the pizza delivery guy.

Credit: TMZ

Lindsay Lohan -- Giving New Roomie A Free Ride

Lindsay Lohan won't be living in her new Venice pad by herself -- TMZ has learned she's going to have a roommate ... and the girl will be staying there rent-free.

We're told LiLo's new roomie is a girl she met during her time at Betty Ford. According to our sources ... the girl has been sober longer than Lindsay has (FYI -- Lindsay celebrated four months of sobriety Friday).

Sources close to Lindsay tell us she feels it's important to Lindsay to surround herself with other sober people. We're told she's helping the cash-strapped girl out ... letting her live rent-free.

Seems Lindsay's first role post-rehab ... is that of a sugar mama.

Credit: TMZ

Lindsay Lohan Hits 100 Days Sober Mark

Lindsay Lohan has hit a huge milestone on her road to recovery -- she's celebrating her 100th day sober, Radar Online has exclusively learned.

The 24-year-old Mean Girls star has gone 100 days since her last positive drug and alcohol test and is successfully staying away from the substances that have landed her in rehab.

Since entering the Betty Ford Center in Rancho Mirage, California, Lindsay has been earning privileges to leave on day trips, work, and even drive again. All of which are part of the recovery Los Angeles Superior Court Judge Elden Fox hoped to achieve when he sentenced the actress to the treatment center until January 3, 2011.

As Radar Online previously reported, Lindsay is taking her sobriety seriously, according to her mom Dina, and is looking forward to working again in the New Year.

Her father Michael wished his daughter well and exclusively told Radar Online: “I hope she has a decade more.”

Credit: Radar Online