achieve one's promise与keep one's promise的区别

我是这么理解的,promise分为两种：(1) I promise to clean the house (2) I promise not to tell him。对于第一种,如果我打扫了房子,那么我就是 achieve my promise,第二种,如果我没有告诉他,那么我就是 keep my promise,如果我告诉他了,那么被承诺者可以说 You didn't keep your promise。