Not an attack on anybody, just a personal observation - reading through the posts here a lot of people are eating way too few calories, and way too little protein.
The calorie target can be easily worked out based on height and weight; if you also frequent the gym don’t cut like crazy, you need the energy. Most women would need at least 1200 calories. This will vary based on your weight, but most can probably benefit from 1200-1400 calories and will still be in a deficit. We are adult people, not baby birds. Massive cuts in nutrition where you end up consuming 500-800 calories are unhealthy and unsustainable. If you consume too little, as you need to adjust your calories down the line as you’re losing weight, you have nowhere to go from there.
The protein target should be 1 g of protein per kilo of body weight. If you’re 100 kg, you need to aim for 100 g protein a day. Protein is so important for minimising muscle loss, for keeping you full for longer, and it is a good idea to prioritise it as it will also be key for maintenance down the line.
You don’t really need to eat a ton to hit it. There are many easy wins - protein shakes, protein puddings or yogurts, chicken, lentils, tofu. Most foods you like have a high protein version too (think wraps, bagels, puddings, milk, cheese, etc). Have a few easy options on hand for the times when you don’t quite reach your target, and need a little boost.