Stuttering on A, E ,I ,Y, O, U as first or 2nd letter in a word

Stuttering on A, E ,I ,Y, O, U as first or 2nd letter in a word Ive been stuttering all my life i think, now that im almost an adult(im 16) i want to fight it and dont be scared to talk anymore. I mainly stutter when someone is waiting for me to say something, like class presentations, someone comes up and asks me something, i start telling a story or if teacher ask me a question. When the word starts with any vowel the only sound i can make is for example "absent" aaaaaaa- and i cant go to the b. But its not always like that, when im talking to a friend or in a group i rarely stutter unless the entire focus comes at me and it gets quiet. I lost lot of possibilities of making new friend becasue of that, i even stutter talking with my own mother. Im venting here becasue im wonder if anyone else has this specific problem as me and how do you cope with it