My stutter isn’t solved, I still do it, but I can better hide it. My stutter is from anxiety. I am on anxiety meds, it helps, but there are mental tricks that you can do to assist you. For instance, I have trouble saying words that begin with a and e. What I find helps is to say the word without the first letter, then repeat it with the first letter. There are many techniques to assist you. Research them on YouTube and so. Also realize that the situation you’re about to face isn’t that bad, everyone is human, and hopefully that helps you not stutter.