Amanda Bynes quietly celebrated her birthday last week as she is currently staying in a rehab facility and she could remain there for several more months.

The Hollywood actress turned 33 on April 3. But instead of hosting a bash with her friends and family, Bynes was stuck with her mental health counselors and addiction specialists because she’s checked into a Los Angeles-area rehab center early this year.

Early last month, an insider confirmed via Us Weekly that Amanda entered the rehab in January after “suffering a setback which was the result of feeling pressure of being back in the spotlight.”

Before March ended, another source updated the entertainment news outlet about the “She’s The Man” star’s treatment, saying that she’s expected to stay there for a lengthy period for her own sake.

“She will remain in treatment for several more months,” the source said. “Nothing will be rushed to give Amanda the best possible result after leaving treatment.”

Meanwhile, some of Amanda’s friends spoke anonymously about their fears regarding the actress’ well-being. Some of them are worried that Bynes’ latest slip-up could actually kill her because she just couldn’t “handle the media spotlight” anymore.

It can be noted that the former child star attempted to rebound her career last year. She even did a no-holds barred interview with Paper Magazine in November and openly discussed her depression battle and her preference when it comes to drugs.

Prior this, the “What A Girl Wants” star hasn’t been in the public eye since 2013, the time when she received treatment for bipolar disorder and schizophrenia. Following her struggles with her health issues, Bynes reportedly became desperate to get back into showbiz.

The Thousand Oaks, California-born actress started early in the showbiz industry. She got her first big break when she landed a part on the hit kid series “All That!” at 8 years old. She then got her own TV series, “The Amanda Show,” which premiered in 1999.

In 2001, she starred alongside Frankie Muniz in the hit movie “Big Fat Liar,” according to The Daily Caller. Bynes then went on to star in other projects including “What I Like About You” with Jennie Garth and the 2007 film adaptation of the Broadway musical “Hairspray.”