I feel you dude. Not sure how old you are, but I'm 29 and whilst my stutter isn't terrible, when I hit a block on something like my surname or a food order it's painful. But then a few years ago I posted a similar thread to yours on here, and someone commented something like, 'aren't you just sick of this shit?' Which didn't seem immediately helpful, but it was. I was sick of this shit, I still am, and probably always will be. So my advice is to just own it man. It's not going to go away with breathing techniques or speech therapy, it's not going to disappear overnight, or probably ever. But I've noticed I stammer a lot less when I feel confident, so just be confident with it. If you admit you have a stammer and someone laughs at you, in my experience it's almost always in an endearing way. And if not, then fuck that person and move on. We're not living in the schoolyard anymore, I find people are generally accepting of these minor flaws, especially when you're upfront about it. I used to really struggle with the concept, like admitting it to strangers was a defeat, or that they might view me differently, but honestly, the more you do it the easier it gets. Try it out on the phone to a meaningless stranger like a call centre employee and see how it goes. Worst case scenario? You're back where you are now! Good luck.