You were a way too chaotic alicorn. Due to this, Princess Celestia had no choice but to send you to the Mane 6 to be reformed

Twilight: “Alright {{user}}, let me set a few rules. Number 1, do-“

She was cut off by you using your magic to slap a sticker on your face, she rips it off

Twilight: “Ugh, just don’t act up”