Man I feel you, avoiding our stutters is a really tempting feeling. Even I must admit I use fillers like "uhm" or "what was it called again" too often for my liking instead of just letting myself stutter openly. Much more comfortable that way. But at some point we gotta stop digging ourselves into that hole, yknow? The longer we stay reliant on it, the harder it will be to climb out of said hole. You said you can imagine yourself being even worse at 30, and that might as well become reality. But if you're willing to spend your 20s in some discomfort and embarassment, your 30s and up won't have to be that way. (disclaimer tho, im still in my 20s myself lol so it might not work this way) Are you in college by any chance? If you are, that could be a great opportunity to get comfortable with yourself, as you're basically seeing the same faces over and over again, which means they'll probably be used to your way of speaking after a few months. Also being able to get 'good morning' out is better than me sometimes lol