Stop controling your stuttering it just give it more power. Give up the techniques. There is no try on speaking because it is all automatic. It is your disorted belief that speaking is like a skill, something that by making tremendous effort you will finally sucess that make you stutter the most. Learn and believe that speak is as natural, spontaneous and fluent like breathing or your heart beating. Your body make´s all the job. You just have to leave the channel open dropping the resistance build by your mind.