Calories in versus Calories out. A drop in a certain type of macronutrient usually results in weight loss. Why? Because unless you track your calories and macros to the T, chances are you did not substitute the loss macronutrient's calories value with other macronutrients resulting in a caloric deficit which in turn causes weight loss.

Say you usually have

200g Carb, 200g Protein, 60g Fat.

You decide to drob carbs as a whole. Take out your rice, bread etc and you end up with

50g carb, 200g Protein, 60g Fat. That itself is a 600kcal deficit from your usual caloric intake.

Going low carb long term does mess with your head but carb cycling goes hand in hand with nutrient timing. Unless you're good with that, I suggest you stick with regular caloric restriction.

If you are to introduce carbs back into your diet. understand that 1g of carb is 4kcal. Introduce them slowly back into your diet, small increments at a time. You WILL end up ballooning up if you do it drastically and at that point you're just going to say carbs are evil, avoid carbs at all cost.