I am 17 and a senior in high school, and I have been picking since 4th grade. It started when I was playing in the sand at the playground and scratching the sand out of my hair. For some reason I found it to feel really good and kept scratching at my scalp. After that I kept doing it more frequently when I was bored or stressed. At first I was pretty discreet with it, but now I try to be discreet but I know it is very obvious. Also I am almost always doing it. In the car, During class, at home, etc. It's so embarrassing and I know people see the flakes and scabs float down. Not to mention I scrape the flakes from underneath my fingernail with anything I can find. I find it so difficult to explain to other people what it is, and I feel like I gross people out with it. I want to stop because I don't like being so weird and gross and it hurts, but at the same time I don't because it feels so good and gives me stuff to do. How can I live with this and what can I do.