This is the HARDEST part of reaching fluency. A stuttering brain instructs the vocal cords to close during speech whereas a fluent brain instructs the vocal cords to remain open during speech. You are basically fighting with your brain. The problem is the brain always wins. When you stutter the brain is happy because this is your comfort zone. When you are fluent the brain is unhappy and confused because fluency is not your comfort zone. You need to instruct the brain to maintain airflow until the brain understands what you want it to do. This is how I transformed my brain into a fluent brain and why I have never had a relapse. You need to become really aware of your airflow. When talking you need to make a conscious effort to maintain airflow. First you need to take a breath and passively let the air out but without voice. You need to practice breathing. You are not to blow the air out but rather let the air out on its own by just relaxing your lungs. When you can do that then you add voice. The brain is not going to let you do this so you have to do it enough times where you take control of your airflow. This part is very hard and frustrating but you need to take control of your brain. Once you have control then you become fluent and you will not stutter anymore. It can be done. It was easier for me because I am a speech pathologist. It would help if you can find someone in your area that uses the passive flow technique.