"There is one thing, and one thing alone, which drives me - phrased quite simply, it is fear of failure - and I don't mind stating that as a fact," he said.
"People might look at me and think I'm doing well. But in my own mind, I know I have a long way to go at this stage of my managerial career.
"I want that journey, at least in the medium term, to be with Birmingham. I don't lie when I say that."
Brucie is expected to put-pen-to-paper on a new, improved, five-year contract with Blues some time this week.