1000 calories is actually going to hurt you. Up it to 1400 and go for high volume, low calories.
Example- Breakfast - 100g greek yogurt, a banana, 100g strawberries, 30g blueberries and a small handful of granola is around 300 calories.
OR
Shashuska - A whole tin of tomatoes, 1 onion, garlic, cayenne, paprika - 2 egg, 300 calories.
Lunch - a whole cucumber, 2 tins of tuna, half a tin of sweetcorn and half a red onion. Dressing - 2 tablespoon greek yogurt with a tablespoon of mayo and a teaspoon of mustard. Add some diced pickle and dill. 500 calories
OR
Ramen noodles with veg and cooked chicken - 300-400 calories
Dinner - 120g chicken, 100g rice, a HUGE salad Approx 450 calories.
OR
https://www.instagram.com/p/DYlF4TKtJT8/ Greek chicken and salad 560 calories.
Biggest things that can catch you out... None diet fizzy drinks, cooking oil, dressings.
I do not feel hungry at all and lost 3 kg in 5 weeks starting at 73 kg. Think big plates, low calories - berries, melon, greek yogurt, cucumber, courgettes, peppers, cauliflower, cabbage.