You should talk about it with your parents and see if you can get in to a see a speech therapist specializing in stuttering. If your parents aren't supportive of it or you aren't sure how to go about talking them about it, I'm certain people here will be able to help. If your school has a speech therapist available you can talk to them, but be aware that stuttering is a very specific specialty and they may not have any experience or expertise in it. Good luck, let us know what you do!