You can replace some of the carbohydrates in your food intake with more protein instead that'll aid the burn without going the full atkins stylie. Certainly if you aren't doing excessive exersize it will be okay but don't go too silly, something around 350-450kcals per day from 1900 total would be ok.
Careful on fruit juice, it's full of sugars and 'low fat' yoghurt is also fairly high on sugars and carbs (approx 7 & 7g of each per 100g)
Leave notes on fridge/cupboard doors to remind you of your goal, make the effort to buy food you like that fits in with the eating habit and don't be afraid to snack on stuff that is okay.
One of my faves snack/munchie items is bacon bits. I dry pan fry very lean bacon, cut into small chunks and leave them in a pot in the fridge to reach for when I get the munchies