Having an adult body sucks

Im 20f and while I am small 146 cm my body still looks grown. It makes me feel so gross I hate having hips and boobs and other signs of maturation. Like it feels disgusting ever since I went through puberty I couldn't accept it. Obviously there's nothing I can do to make it go away. I am jealous of kid's I wish my body still looked like theirs do. I am greatful that im a woman so the changes from puberty are less extreme than if I were a man but it still hurts. I don't know how to accept my body? I don't care about having kids or even being married or even doing the deed so my body being grown doesn't help me in anyway. I am lucky I can wear kids clothes very easily but my body kind of ruins it I feel like.