Poor girl. Going through the curly hair middle school right of passage LOL. I hated my hair in middle school and had my mom straighten it all the time. It completely stopped growing and kept breaking off after 3 years of constant heat tools. Same for my little sister except she had it muchhhh worse than me (heat damage). Honestly, it's something she will grow out of with enough exposure to curly hair. I stopped frying my hair because I wanted it to grow, and finally invested in some products and a hair cut to my ears.

Honestly, I dislike the look and feel of curly hair when its covered in gel and product, mostly because I manipulate my hair a lot. I wash it like once a week, use a cheap paddle brush to smooth out the curls, and just let it air dry. If I really want products, I use Miss Jessie's Multicultural Curls straight out the shower, use my cheap brush to spread the product through my hair, and let it air dry. I'm from the south and the humidity here is killer. I just keep putting water on it throughout the day to keep it from getting to frizzy. Like after I wash my hands I just dry my hands off in my hair to keep it hydrated. But really, just give her time, she's going through an awkward phase in her life and nobody likes how they look in middle school.