the right sentence is "Kyou, watashi no azatoi ryoushin ga watashi no heya ni ikimashita." when saying today, usually you just say kyou, but sometimes you may say "kyou ha" (never "kyou ni", also, i wrote "ha" but it is pronounced "wa", just some grammar after learning the hiragana. have you learned it?) the usage of "ga" or "ha" after ryoushin is optional, but ga is more correct in this sentence when you talk about a destination, you use "ni", not "wo"