I used to take a couple of spoons of sugar in all my hot drinks. I cut out added sugar on anything. It was quite difficult to begin with and I suffered from what I can only call "withdrawal symptoms" - headache etc. Now I've adapted and if anyone accidentally adds sugar to my tea I find it tastes like syrup. As for beer, I only ever order a half pint or a 330 cl bottle. I still eat bread occasionally, but only buy a small loaf, which I slice thinly. Good luck.