Actress Amanda Bynes admitted she is "really ashamed and embarrassed" about a period in her life when she a lot of drugs and posted a number of bizarre and hurtful messages about her family and other celebrities, including some infamously vulgar posts about Drake, and the comments still "eat away" at her.
She said: "I'm really ashamed and embarrassed with the things I said. I can't turn back time but if I could, I would. And I'm so sorry to whoever I hurt and whoever I lied about because it truly eats away at me. It makes me feel so horrible and sick to my stomach and sad.
"Everything I worked my whole life to achieve, I kind of ruined it all through Twitter. It's definitely not Twitter's fault - it's my own fault."
The 32-year-old actress even made the "really foolish" decision to announce her retirement on the microblogging site.
Speaking to Paper magazine for their Break the Internet issue, she said: "I saw it and I was convinced that I should never be on camera again and I officially retired on Twitter, which was, you know, also stupid.