You won't be seeing Amanda Bynes on the big screen anymore.

The actress announced Saturday on Twitter that she was retiring from acting at age 24.

"Being an actress isn't as fun as it may seem," she wrote. "If I don't love something anymore, I stop doing it. I don't love acting anymore, so I've stopped doing it."

"I know 24 is a young age to retire but you heard it here first I've #retired," she added.

PHOTOS: Do you like Amanda in this pink dress?

Bynes — whose latest film, Easy A, hits theaters this fall — added, "I've never written the movies & tv shows I've been a part of. I've only acted like the characters the producers or directors wanted me to play."

Just last Tuesday, she Twittered that her idols are "Marilyn Monroe (RIP) and Angelina Jolie."

Bynes rose to fame on Nickelodeon's All That and her own comedy series, The Amanda Show. She starred on her own sitcom, What I Like About You, from 2002 to 2006. She's also appeared in feature films such as She's the Man and What a Girl Wants.