Hello Ashley, I think it might be better if you asked more politely. "Who gonna help?" is too informal, and it's bad English. Some people will think it rude! Who could help me? is more polite. I wish you luck.

It's very kind of u to point out my mistake.I am quite sorry for that.I didn't mean to impolite.I used to asked English speakers about that.but nobody told me about the exact meaning as u did.thanks a lot.I will Pay attention.well,please trust me I am not mean to be rude.I am terribly sorry for that.