I know what you are talking about. I was in the same position 1st to 9th grade. School was pain. Reading aloud was a pain. Presentations were a pain! Talking with friends wasn't that bad, though. Anyway, I said fuck-it. I can't keep living like this anymore. Broke down in front of my parents, they signed me up to speech therapy(They didn't know the extent of which my stutter affected me). For 2 years I got very disciplined - weightlifting 4-5-6 times per week. Reading aloud every day. Doing speech exercises everyday! Forcing myself to talk to new people every week. Doing countless mock presentations at home before each presentation. This is what made me improve. I don't consider a stutter a problem anymore. On the contrary, I feel like I wouldn't be the best version of myself had I not stuttered. The important thing to remember is that you CAN improve. You CAN have a nice day! I know it doesn't feel this way, right now. I would love to help anyone suffering. Write me a DM!