When I didn't know anything about taking care of curly hair I use to flat iron it almost daily on the highest heat setting. I didn't know anything about how to wake up with second day hair either so I would wake up and flat iron my already flat ironed( but slightly wavy from sleeping on it ) hair. I didn't even really use a heat protectant and I was using sulfates to wash it. When you are clueless and you don't stop and think about the consequences its terrible. Other people thought my hair looked good, it was long and shiny because of the products I was using but it wasn't healthy and it didn't grow any longer than a few inches below my bra for a long time. I finally smartened up learned how to care for my hair and love my curls and my hair is healthy waist length and looks a lot better.