Britney Spears has lasted longer in Rehab than most of us thought she would, but it hasn’t been easy. The bottomed out Brit isn’t quite ready to admit that she has a problem.

From MSN:

According to Us Weekly, the meltdown-suffering mom of Sean Preston, 18 months, and Jayden James, 6 months, is “miserable” at the spalike center, with an insider claiming she “has been getting in tons of trouble.”

Among her alleged infractions: making too many phone calls and venturing out to pick up some new togs (she reportedly Spent $3,000 at Los Angeles boutique Intuition during an online retail-therapy session).

Despite Promises’ nontough love approach, Brit still seems to be having a tough time working through the first of the 12 steps.

“She’s convinced she’s suffering from postpartum depression and does not think she has an alcohol or drug problem,” tattles the snitch. “She’s angry at her Family and her manager for pressuring her to enter the program. She feels she was ambushed.”

She thinks Mama driving her to rehab was an ambush? After the head shaving, car bashing week Britney spent before she went into Promises her family could have tossed a net over her, stuffed her in a sack and rolled her all the way to Promises and no one would have held it against them.