So disappointed! Every time I use the blow dryer brush, after a couple of hours my hair curls up again! My hair is wavy/curly, but a light/fine texture. I've never had this problem with any other hair tools! My mom purchased a different blowdryer brush off instagram that I used to use and it never gave me this problem. So disappointed, feels like I lost my money's worth. I don't know if the blow dryer brush I received was a faulty one, or whether the quality of the blow of air is just low, or if...