Brooke Mueller: Fine, I’ll Go to Rehab

Brooke Mueller is finally admitting she has major substance abuse problems … and has agreed to re-enter rehab after her cocaine arrest last week — TMZ has learned.

Sources close to Brooke tell TMZ, she was reluctant at first — but friends eventually persuaded her she needed help … and another stint in rehab was the only option.

We’re told Brooke’s team is now finalizing the arrangements at an undisclosed treatment facility … somewhere close to her L.A. home — and she’ll be packing her bags soon.

According to sources, Charlie will be taking care of the kids while Brooke is away — with some help from her parents.

But it’s not a done deal yet — while they’re hopeful Brooke will make good on her word … our sources are still fearful she’ll back out last minute.