Best advice is to just approach people and face your fear. In 4 years you will finish high school and you will eventually forget everyone you went to school with. So SAY what you WANT. No matter how much you feel like stuttering. The more you face the fear of stuttering with strength and perseverance the easier your speech will be. Trust me, I tried all the techniques in the book. The only thing that helped me was to stop giving a shit about what people think. You can only stop caring when you don’t let your stutter hold you back.