Hi, congrats! I am also petite and sometimes the Neverfull mm feels big on me too. I still love the style so I just wear it and enjoy it. I own de and mm, wearing it cinched helps it feel less big. When the canvas relaxes and softens it will also feel less big. I like that the Neverfull does not feel too bulky on me like some other LV styles. I think you chose the right size, looks great on you!