What can I do to avoid being laughed at?

You worry too much. Don't live in other people's minds. Go your own way, lest others fail. I stutter occasionally, as long as I am anxious and nervous, but this is not a disease. I have my own method. I will prepare every meeting or proposal with the leader in advance. Maybe something unexpected will happen, but as long as I have confidence in myself, there will be no difficulty. I think you just have no confidence in yourself. The terrible thing is that you laugh at yourself.

Also, after getting up in the morning, read an article aloud to yourself, then imagine that there are ten people listening, and then imagine that there are one hundred people, one thousand people and ten thousand people waiting for you to finish reading. I don't think stuttering is a problem for you at all. Some people will think that you mean it. Come on, brother ~!