I lost over 3 stone in 2017 by calorie counting. I've kept most of it off but did put on 1/2 stone over lockdown so am being a bit stricter this month!
I eat everything I want and have alcohol, biscuits and chocolate most days. I don't have breakfast and split my calories over lunch, dinner, snacks in a 25/50/25 ratio. I like to have a light lunch and a bigger meal in the evening followed by a glass of wine/G&T and some dark chocolate.
If I want to lose weight then I do this:
Lunch: Tuna or ham salad (lettuce leaves, radish, tomatoes, celery, peppers, mushrooms), no dressing just herbs and seasoning. A 10 cal jelly or similar and a couple of rice cakes.
Dinner: A lot of veg (e.g. cabbage, kale, broccoli, runner beans, sugar snap peas, mangetout, beefsteak tomatoes, large mushrooms). A small piece of chicken or fish. Sometimes I have something like chilli or bolognaise sauce but will eat them with veg rather than pasta or rice.
Snacks: A couple of biscuits mid morning, maybe one more in the afternoon. Skimmed milk in coffee and tea. Some dark chocolate and a glass of something in the evening.
I'm lucky that I don't like potatoes in any shape or size and I'm not fussed about pasta or rice either. I can happily have 4/5 vegetarian meals a week too as I'm not a massive meat eater.
At weekends, I do have something like a croissant and eggs for breakfast, homemade pizza for supper etc.