Straight Hair

Hi! I have straightened my everyday since the summer, but it is very dry. Most people would think it's from the blowdryer, but it's not because it was just as dry before I started straightening it. I have tried just about every product out there on the market (except for the salon brands) and none of them worked. My hair is basically like Mariah Carey's hair was when it was HUGE. This is what it looks like right after I shampoo it and let it air dry. When I do straighten it, it is not as huge and it looks O.K., but I would like it to be as flat as her hair is when it is straight and I wan't to get rid of my extremely dry ends.Can anyone help? Thanks