I recently started to mew in a proper way and that made my breathing technique proper and even my resting tongue posture good, consequently i started to stutter less. Unless i start to speak, my tongue is on the roof of my mouth at its resting position. So, i stopped preparing my tongue and mouth to be in a ready position in the anticipation of speaking. Earlier, like how a sprinter is in position waiting to start to sprint, i used to keep my tongue and mouth ready to start to speak. But now, both my tongue and mouth are always at resting position, only when i start to speak my tongue is out of its resting position