I found the way to give up my favourite carbs was to think about the best substitutes - cauliflower rice, halloumi fries, etc. And I switched from milk chocolate to 85% dark. There are loads of recipes on the low carb and keto websites.
I still have a sweet tooth, although not as sweet as it used to be, so I have full fat greek yogurt with a few fresh or frozen berries, or make a fake rhubarb crumble with ground almonds to serve with double cream. And occasionally make a low carb cake with ground almonds or coconut flour.