Why i don' lose weight?after trying so many diets

Hi everyone! I want to know why I'm not losing weight :( . I've just tried different kinds of diets but it doesn't work.

I'm 16 years old,

132 lbs ,

5'1



Here ia my diet history(the one without advice of someone or simply I just do my own diet without reaearching and without knowing it would be dangerous)



When I'm Highschool i don't eat breakfast, I starve always and I do it for almost 2years . I didn't also

take my lunch. I just buy snackk in our canteen knowing it won't make me fat. And in dinner, i eat a lot. Sometimes small meals.

In my almost 6months of doing this. My friends tell me that I'm getting thin, but then after 1 year and more months. They notice i'm not getting thin and tell me to avoid skipping meals. I'm not starving so I continued. And now I'm college student,i want to research about healthy diets that won't affect my health badly. But now i tried everything (calorie deficit - eating

less calorie more than my body burns) , while doing (low-carb diet,50kg of carbs only or low per day)

I never eat unhealthy foods/drinks(candies,energydrinks, junkfoods, verybsweet foods etc) and start eating fruits and vegetables.

i eat small meals every three or four hours to keep my metabolism going(limiting it to 1,000 cal per day or 1200 because my bbody burns 1,400 cal a day.



i don't know what to do. But my body don't change. And the number on scale :(