When I was in the 7th grade my stuttering was at an all time high. It was bad to the point I ask my English teachers to not pick me to read out loud to the class because they would just laugh. My mom would then take me to a speech therapist and it changed my life. Now the stuttering happens at a 1% rate. I recommend go seeing one. Or use some of the programs people are mentioning here. I didn't even know these existed until I came onto to this post. Good luck to you. I know you can overcome it.