YOU SAID:
“I will help you, so please don’t worry.”
INTO JAPANESE
「私がお手伝いしますので、ご心配なく。」
BACK INTO ENGLISH
"Don't worry, I'll help you."
INTO JAPANESE
「心配しないで、私が助けてあげるよ。」
BACK INTO ENGLISH
"Don't worry, I'll help you."
That didn't even make that much sense in English.