I'm not sure if I'm supposed to be worried about this. Any suggestions? (photo)

So I have had my braces for nearly 2 months now and I haven't got the elastics yet, I have been flossing regularly and my gums are growing between my teeth as you can see in the picture, I have tried to floss but it isn't helping very much. Any suggestions on what I can do to take the gum away before my next tightening on Monday? Thanks

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