HAPPY
happy = ureshii
*Ureshikatta = past tense
I think there are two ways to say 'I am so happy'...
1. Ureshikatta wa! [wa is used informally to emphasis]
2. Hontou ni ureshikatta!
学ぶ日本語![Learn Japanese!]
Learn to speak Japanese in this guild! Kanji will be displayed, as well.