I had to give presentations and speeches in class. When I'm going to deliver my speeches, sometimes I can't even say good morning. I stuttered way too hard to the point of being like mute. I couldn't say anything. I tried many times until I give up and my teacher told me the sit down and told me to practice more the next time. The teacher even directly asked me infront of the whole class "why are you shaking, why are you nervous" and the worst of all "why are you stuttering so bad". From that point on I started to develop a severe social anxiety. I'm still working on it. I know I can get over it because it's a learnt pattern not my identity or who I am even though I stutter and basically goes mute sometimes. It's the brain wiring. You can rewire it. So don't stress too much about the future. I hope you can do your best. Good luck man!!!