When he came out of Northgate, he was unemployed and unable to work.
He said: "I didn't have to worry about bills or looking after a family when I was inside. But the real world gave me a shock when I came out.
"I didn't want to have to sign on to benefits or keep taking medication - because my friends weren't doing that and it seemed unmanly. I was in my 30s, but I still felt so different to the people around me."
Then, Mr Humble became the victim of an abusive relationship for around 18 months. As a drinker, his partner left him feeling on edge and emasculated.