My first Japanese Note!

こんにちゅわ! --> こんにちは。 (konnichiwa.) *The particle は is used after the subject and it's read わ.

はじみまshて --> はじめまして。 (hajimemashite.)

わたし わ あdりあん さん です! --> わたしはエイドリアンです。(Watashi wa Eidorian desu.)

*We don't put さん after our own name. It's used for other people. 

よるしょく おねがい します! --> よろしくおねがいします。(Yoroshiku onegai shimasu.)

Arigato Gozaimasu! --> ありがとうございます。

*In my opinion, it's not necesary using kanji from the first time, the most important is using hiragana and katakana correctly. Please learn kanji little by little after learning hiragana and katakana. 

Good job! Pleaae enjoy learning. I hope this was helpful.