I was born and raised in America, and have lived here all of my life, making me fluent and native to the English language. I am a great writer and thus can offer help that not only allows you to speak (technically) correctly, but also smoothly and like a native. I am not sure what your time frame is, so I stated I could help you in 5 days. We can collaborate to change the amount of time, if you wish.
Thank you for your time
Megan