Wavy hair is confusing..

Hi! I have 2a/b hair and I just want more deffined waves/curls. I can tell that parts of my hair react better to humidity and water such as my baby hairs. I just wish the rest of my hair curled like that. I've tried Shea moisture curl and shine shampoo and some regular conditioner (I can't remember the name) and then applied the curl enhancing smoothie. That ending up drying out my hair and took away all of the waves. My mom has straight hair and I most likely enharited wavy hair from another family member. So I never knew how to treat my hair. Do you have any tips on styling and deffining 2a/b hair?