What is the easiest way to lose weight as a 12 year old?

I'm 12 years old, my aunts say I don't need to lose it, but I want to. I'm not losing it for nobody, I just want to be in the right shape before summer hits. I'm tying to fit into a 2 piece and I don't want my belly over my bottoms at all. And then people in the streets or people my family knows they say that I can be a thick model since I have a lot of curves on me. So I'm trying to see if I should do that, and then trying to see how to become a model I follow a couple of models on ig, but I still don't know how I want to become one. I think in order to become a model I have to be in right shape and that's why I want to lose weight. Does anyone know any workouts so I can lose some weight . 💯💯👙👙🙏🏾🙏🏾👠👠💇🏽💇🏽👛👛😐😐😕😕