YOU SAID:
I so much more me when I'm with you
INTO JAPANESE
私はあなたと一緒にいるとき、私はもっと私です
BACK INTO ENGLISH
I'm more me when I'm with you
INTO JAPANESE
あなたと一緒にいるとき、私はもっと私らしく
BACK INTO ENGLISH
I'm more me when I'm with you
That didn't even make that much sense in English.