Lindsay Lohan, who received her first jailhouse visitors, is "doing the best she can" to adjust to her new life at the Century Regional Detention Facility in Lynwood, Calif., according to her lawyer.
Shawn Chapman Holley, who saw the startlet Tuesday, told People magazine that Lohan's "spirits aren't high" and she is "having a difficult time adjusting."
"She's trying to make the necessary adjustments to an extremely stressful and difficult situation," Holley said. "There were some tears. ... She's doing the best she can."
On Wednesday, her mother, Dina Lohan, and younger sister Ali paid her a visit. The pair were videotaped entering the detention center that afternoon.
A source told Popeater that Lohan's father, Michael Lohan, would not be among the visitors coming to see her. "She wants no part of him," the source said.
Former inmate Tiffany Hawes, who was being released as Lohan was entering the facility, told Britain's Daily Mail: "Lindsay was crying when she came in. She was handcuffed but seemed calm. We all started saying, 'God bless you Lindsay,' and saying 'Hi' to her and then she smiled at us."
Though she was sentenced to 90 days of jail and 90 days of in-patient rehab for violating her 2007 probation, Lohan's stint in the slammer could be as short as 13 days.
While she's behind bars, though, she will have to pay for the comforts of home. Lohan will have to buy her own deodorant ($2.50), tampons ($2.70) and razorless hair remover ($3.75), according to the detention center's product list obtained by TMZ.
Snacks will also cost her: $1.33 for a bag of pork cracklins hot, $0.85 for pepperoni beef stick and $0.92 for Ramen spicy shrimp.
Meanwhile, Lohan will be allowed to take prescription medications in jail, including the attention deficit disorder drug Adderall, according to TMZ.com. A probation report released earlier this month revealed that Lohan had a valid prescription for Adderall.
While the law may allow her to pop pills, her estranged father isn't pleased.
"She's got to get off prescription drugs," Michael Lohan said on CNN's "Larry King Live" Tuesday night. "I don't think jail is going to change her; I think she needs to change herself."
On Tuesday, L.A. County Sheriff's spokesman Steve Whitmore told the Los Angeles Times that because of good behavior, Lohan only needs to serve 51 days in jail. Whitmore noted that female, nonviolent prisoners do about 25 percent of their sentence because L.A. jails suffer from overcrowding, which brings Lohan's total time down to 13 or 14 days.
Lohan will serve her time at the same facility that housed Paris Hilton in 2007 and will be segregated from the general jail population.
At a news conference outside the Lynwood facility Tuesday, Whitmore said Lohan "has been extremely cooperative" so far.
"As with any inmate, Lohan was treated just like any other," he added, noting that most inmates don't draw throngs of paparazzi. "Inside it's business as usual."
Her time in prison won't be posh. Lohan will swap her plush bed for a vinyl mattress and her sprawling home for a 12-by-8 foot cell. She won't be able to smoke in jail or wear makeup.
But ABC News legal analyst Dana Cole said that for most of her time behind bars, Lohan will just be bored.
"It's not going to be the worst situation imaginable, far from it," Cole said, noting that she'll be separated from other inmates for her own protection. "It's just going to be boring basically."
At least Lohan will be cooped up with someone she knows -- sort of. The Los Angeles Times reported today that one of Lohan's inmates at the Lynwood jail is 19-year-old Alexis Neiers, whose "bling ring" of accused burglars targeted celebrity residences, including Lohan's Hollywood Hills home.
Neiers is currently serving a 180-day sentence for felony first-degree residential burglary of actor Orlando Bloom's home.
Of course, because Whitmore noted that Lohan "will be kept away from [the] general population" of the jail, they may not meet at all.
Lohan's surrender came two weeks after her tearful sentencing hearing, in which she sobbed as Judge Revel handed down her sentence.
Ten minutes late, clad in sunglasses that couldn't hide a steely glare, Lohan marched past a throng of photographers and glitter-throwing fans Tuesday for a preprison court hearing.
She sat through a brief courtroom discussion before Revel ordered that all cameras be shut off for Lohan's handcuffing. The actress stood, placed her hands behind her back, and let two deputies cuff her and lead her out of the courtroom without making a scene.
Not so for her estranged father. Michael Lohan shouted, "We love you, Lindsay," as she was escorted out. Lohan's mother, Dina, and younger sister, Ali, also watched as she was taken into custody.
From the courtroom, Lohan went to a courthouse holding facility before shipping off to the Lynwood facility. Before leaving the courthouse, she swapped out her jeans, sleeveless top, cropped jacket and corset belt for her new, albeit temporary, wardrobe: an orange jail jumpsuit.
Shawn Chapman Holley, who resigned as Lohan's lawyer after her July 6 sentencing, represented the actress at the hearing. She addressed reporters afterwards, saying that she stepped back into the Lohan case when the actress decided she did not want famed O.J. Simpson attorney Robert Shapiro to represent her.
"She's stepped up, she's accepted responsibility," Holley said about Lohan. "She's scared as anyone would be, but she's as resolute and she's doing it."
ABC News Radio's David Alpert contributed to this report.