Become vegetarian.
Try it, it will suck if you dont want to be one, but just try it. When the meat goes, so do all the chips and things. Obv you still eat chips, but you normally eat them when they are with meat or a burger.
If you really want to lose weight i guarantee it will make you.
also you stop the mindless murder of animals to make us fatter. There is actually studies that prove vegetarians have less obesity related diseases, theres one study that on average vegetarians and vegans are lighter. Its amazing how much better you feel when you dont eat animal fats.