Denis Wright knows what it is like to feel helpless.
The south west Sydney resident has had a stutter since he was a child and now he spends his time helping fellow stutterers to overcome their speech impediment.
Mr Wright said after finishing university at age 22 his severe stutter affected almost every aspect of his life.
"I had trouble getting a job, I had trouble socialising - it was impacting my everyday life," he said.
"Often people are diagnosed with a stutter as children and they seek speech therapy and if it works it works, but if it doesn't its hard to find help.
"We want people to know that help is out there - you don't have to live with the anxiety, isolation and stress for the rest of your life.
"That's why this documentary was important; so we could show people that there are others just like them out there."
Mr Wright took part in the recent SBS documentary called Stutter School.
The documentary focuses on people who are living with a stutter going through the McGuire Programme.
Mr Wright went through the program himself before becoming a coach.
He is now the McGuire Programme's regional director.
"It's a really awesome show because it shows what it is really like for people with a severe stutter," he said.
"You get to watch their progress and see them find their voice."
Only one per cent of the Australian population have a stutter.
Stuttering can be the result of habit, trauma or a neurological disorder.
Mr Wright said the McGuire Programme had helped him and hundreds of others to overcome their speech impediment.
"We teach people how to speak using a different breathing technique along with a self-development program," he said.
"It's a really holistic approach.
"We focus on helping them to build their confidence, looking at their own psychology and helping them to recognise opportunities.
"We want to help them live their lives to the fullest."
Mr Wright encouraged people to take a look at the SBS documentary.
"Even if you don't have a stutter it's a really great show," he said.
"A lot of people said they felt inspired after watching it. They said it was very emotional to watch too.
"It really shows you what people with a severe stutter are going through and how we help them."
To watch Stutter School visit: www.sbs.com.au/ondemand/video/1831859267832/stutter-school-untold-australia.
To find out more about the McGuire Programme, visit: www.mcguireprogramme.com/en.