Flossing back teeth with braces and pain?

I have trouble flossing too, I've had braces for 3 months and I still haven't figured that part out lol but the eating, make sure you always have a drink next to you because it makes it easier to swallow. and u will have to keep cutting your food into small pieces. I understand it's really annoying but you get used to it. It'll be less painful in a couple of days :] hope I helped.