Anna desu!
Hajimemashite! Watashi wa Anna desu to ju shi sai desu. Watashi wa Porandojin desu. Watashi wa Hatsune Miku to GUMI (ga) daisuki (desu). Oyasuminasai!
Are you 14years old? Then you say ju yon sai desu.
Watashi wa Anna desu. Ju yon sai desu.
Very good.