It took me a year but i lost 3 stone doing UPF free slimming world.
The only drinks i drink are tea / coffee with milk, sometimes to use my HEa a hot chocolate with cadburys drinking chocolate (synned) and water, with a slice of lemon or lime.
I do not drink sugary OR sweetened (with chemicals) drinks.
Its easy to make porridge, or have shredded wheat as HEB, with berries
Then meat / fish
fruit / veg
plain yogurt
potatoes / rice
eggs
lots of salad
beans / chick peas / lentils
some cheese
I DO still have and buy and syn double cream, butter, dark chocolate, avocado nuts / seeds (some are HEB) / organic ice cream, and make my own traditional puddings which i would have a small portion of.
I make my own cakes / biscuits (mostly for my kids) but have a small slice etc (made with butter / sugar / eggs / flour etc)
It absolutely can be done, and i feel so much better not eating random chemicals and strange "ingrediants" which dont have in my kitchen cupboards.
I avoid bread, and probably only eat it twice a month, max!