Braces colors for whiter teeth?

Ok first of all, I'm Indian and eat curry everyday. So, I usually get navy blue or dark purple but last time I was dumb

and didn't think before I chose light blue braces because I'd heard that they make your teeth look whiter, but unfortunately try didn't make my teeth look whiter AND now they're this weird green color... They did originally turn a teal color, but now they're just a weird green...

So anyway, my question is that school starts next Monday(20th) and my teeth look super yellow with these green braces and my appointment isn't until the 22nd... What should I do to not make them look sooo yellow on the first day of school?

Also, what colors do you recommend, keeping in mind that I eat tons of curry and have a darker skin tone.

Sorry this is so long!! Thanks in advance :)

Oh! Also, why do so many people say green and light blue makes teeth look whiter? For me, it didnt at all :P