YOU SAID:
I wish I could wake up and be happy again
INTO JAPANESE
私は目を覚ましてもう一度幸せになれたらいいなあ
BACK INTO ENGLISH
I wish I could be happy again when I wake up
INTO JAPANESE
目が覚めるともう一度幸せになれたらいいなあ
BACK INTO ENGLISH
I wish I could be happy again when I wake up
That didn't even make that much sense in English.