In a video posted on Tuesday, George said: “I have never shared this story until now.
“Two years ago, I sat on these stairs and thought about ending my life. In fact, I wanted to end my life.
“I was so agitated that I was scared. I was scaring myself because I felt out of control,” he said.
He said he then looked at his dog Rolo sat at the bottom of the stairs.
“And I thought ‘I have to try and stay’ and so I gave myself an option, either I leave now or I go for a run.
“And going on that run genuinely saved my life.”
He said the run “lifted me just enough” so that when he came back he called a friend to ask for help.
“And that phone call led on to the changes that mean that I’m still sat on these stairs in my flat today.
“That is how close it came and the thing I reflect on is that no-one would have had a clue, looking before or even after, the crossroads that I was at,” he added.