Good for you. Never give up trying…maybe until you’re almost 80 as I am. I’m tired. Sometimes acceptance is helpful. My stutter is very mild. I just turned down a chance for an evaluation at our local university medical school. It has just become that time to enjoy my life, even if I used to consider myself imperfect. Isn’t everyone? You’re a young person and you should do all you can to be comfortable in your skin but if you still haven’t reached your goal, accepting yourself is useful.