I also struggle from stuttering, unfortunately I do not have too much good advise. However, I suggest you seek speech therapy. It has helped me a lot and I have grown more confident. A good thing to remember, is that stuttering is all in the head. Some good techniques I have used include, Diaphragmatic breathing, just taking things your words slow, and also talking in the mirror to yourself, an alternative can also be recording yourself talking. And if you ever need to talk I am here. Also I can't sress thiss enough, speech therapy really helps. I hope this helps you dude.