I know that all of you are older and have been biting longer, but im 13 and I really want to break my habit before it gets more serious. I bite all the time in class and I'm pretty sure people are getting grossed out by it. Luckily no one has pointed it out but it seems that there is no one else at my school that has the problem. I dont bite till it bleeds but I bite the nails on my thumbs and middle fingers down very close to where the skin meets the nail. I think I am going to try to put clear polish on my nails and fingertips since I am repulsed by the taste. If anyone else has any suggestions of other methods that would be great because I realize what a problem it creates as you get older and I want to stop this habit before it gets worse.