11/02/2011 at 03:00 PM EDT
hasn't acted in awhile but that hasn't stopped her from making sequels.
The troubled starlet, 25, will be returning to the Lynwood Jail for the fifth time – sentenced on Wednesday to 30 days behind bars after she admitted violating her probation in her DUI and necklace-theft
When the judge asked her if she was owning up to missing too many community service appointments, Lohan answered, "Yes, your honor."
Lohan must surrender to the women's jail by Nov. 9.
Lohan, who wore a blue polka-dot dress and her hair in a loose bun, may not serve the entire 30-day sentence due to overcrowding and credits for good behavior. But the judge forbid her from serving time under house arrest as she has in the past.
"She probably won't be serving the full 30 days," says L.A. sheriff's spokesman Steve Whitmore. "She's subject to early release for good behavior and overcrowding."
Once Lohan is released, she must walk an extremely thin tightrope, working an additional 53 days of community service at the morgue
and attending 18 more psychotherapy sessions, all by the end of next March. If she slips up, she is facing an additional 270 days in jail.
In doing so, Los Angeles Superior Court Judge Stephanie Sautner said she was "putting the keys to the jail in [Lindsay's] hands."
Sautner warned Lohan that if there's any violations, she'd issue a warrant for her arrest. But if Lohan completes all the above requirements, the threat of 270 days in jail will be removed.