My suggestion would be to get on youtube and subscribe to Waterlily716 (or just watch her videos on her channel). She has great videos on how to conditioner wash and style your hair since you don't have anybody to physically show you how to do your hair. I'm also bi-racial (my dad is African American, my mom is white) and what works best for my hair and other curly girls hair is lots and lots of conditioner. your mom probably buys a lot of your products so some cheaper products to get at WalMart or Target would be Suave Naturals conditioners, Garnier Fructics Pure and Clean hair gels and LA Looks gel. gels also give my hair the crunchy feeling but after your hair is dry you just have to scrunch some of it out. And the key is to put your products in your hair when it's soaking wet, right out of the shower then don't touch it again until it dries to prevent frizz. Hope that helps!
3B Curly Spirally
Botticelli Curls - Deva Curl
Low porosity, long length
CoWash - Suave Naturals Tropical Coconut
Rinse Out -Suave Humectant Moisture Conditioner
Leave-In - As I Am Leave In Conditioner
Styler - Curls Curl Creme Brule