how to lose weight?

hihiii does anyone have any easy workout tips on losing belly fat, a smaller waist and losing some weight? im currently 43 kg and my goal is 40 kg. ive always wanted to wear crop tops but my belly fat and waist is holding me back:( ive tried dieting but my diet is mostly greens and some meat and i dont think theres anything wrong so im gonna try to workout. pls helpp