Also, if I were you, I would use stuttering as fuel for you to excel in all your other areas in life. Fuck stuttering, hit the gym, get big and nobody’s GONNA GIVE A FUCK. Use all that build up motivation and channel it into something positive and your confidence will increase and that will in turn make your speech much better. Start eating better, drinking more water, sleeping earlier, just start taking care of yourself MORE. Number 1 thing I would tell you any guy that’s struggling with stuttering and self confidence is to hit the gym and try to build muscle. have a mindset of improving and glowing up. As you take care of yourself more you’re going to be more confident about yourself and your life and your speech. I’m telling you, build up your confidence in other areas of yourself and that will carry over to your speech.