I am 40 and had a severe stutter as a child. I still do occasionally, especially if I am very nervous or tired. Just like you I had certain letters that were hard for me to get out - my worst one was "S" and it still gives me some trouble. My school offered speech therapy, so I was able to get treatment in grade school, although I had to practice for a long time for my stutter to mostly clear up. My speech therapist recommended a technique where I picture a cube in my head. I imagine one word of the sentence I want to say on each side of the cube. I turn the cube in my mind, and then "read" the word out loud. This helped me slow down, and gave me something to focus on besides anxiety. Another technique was to practice my speech by making phone calls. She'd have me call up a business and ask a question, like calling a grocery store and asking if they have a specific item. They key was not to rehearse what I was going to ask, so a parent or trusted friend can help you on this. Tell them who you are going to call, and let them tell you what to ask just as you are calling. I know how embarrassing it can be to stutter. The other commenters are right - as hard as it is, try not to focus on how you think others might feel about it. A lot of people won't care, a lot of people will ignore it, a few will try to be helpful by completing words for you, and a small few will think it's funny or weird. Don't let those few people keep you from doing or saying the things you want to. I was well into high school before my fear of speaking started to diminish, and looking back at it now I can see that it was me holding myself back - if I could go back and tell myself these things I would. Feel free to PM me anytime.