Amanda Bynes celebrating her 33rd birthday in rehab

It was previously reported that Amanda Bynes had quietly entered a treatment facility in January after facing a relapse with her mental health.

A source close to the actress now reveals she'll continue seeking treatment at the undisclosed rehabilitation center for an extended time: “She will remain in treatment for several more months. Nothing will be rushed to give Amanda the best possible result after leaving treatment.”

The insider says pressure from re-entering the spotlight following her Paper Magazine cover is what caused her another setback.

The actress turns 33 today, and will be celebrating while in treatment, where she "remains extremely optimistic about her future", and knows getting help will only benefit her.

Source, Source

Happy Birthday, Amanda! 🎈 We wish you well. What's your favorite movie/show of hers, ONTD?