Meet the man who is now delivering speeches to students after previously being unable to answer the phone because of his stammer.
John Dean, 30, struggled with a stammer for most of his childhood and teenage life and was regularly bullied for it at school.
He was unable to put his hand up in class for fear of not being able to answer the question and if he did he would be "laughed at and mocked."
His stammer also played an unwanted part in a school play when he struggled to complete his lines.
Outside of school, people often mistook John's stammer for a bad signal when he answered the phone.
John decided he needed to get help after his stammer was preventing him from answering calls from potential employers.
In 2015, he decided to join The McGuire Programme - an intensive course aimed at helping people overcome their stammer and improve their speech.
In the nine years since he joined, John has completed a number of courses and now helps support others going through the same.
He has gone on to deliver speeches at his former school - something he said he "wouldn't have dared" to do 15 years ago.
