I NEED HELP QUICK!!!

Ok so I have this really really big event that I'm going to be apart of and I have to wear a big dress that's somehow sleeveless. The thing is that I'm embarrassed of my under arms bcz they're black & ive tried A LOT of home remedies but a lot of them take days, even weeks until my underarms are light. Once I did them my "lines" from my under arms got red. I guess my skin got irritated PLUS my skin is still dark and I just don't know what to do!! 😫😭😭😭 this event is tomorrow & I don't know what I'm going to do aksoiekwodwk (Do y'all have any advice? Any home remedies that will work overnight, just one day) PLZZ HELLP!!! 🙆🏽🙏🏽😭