The Irish full-back started his first match since August in the win over Bolton after making an immediate impact as a half-time substitute against Blues.
''My main aim was just to get back fit and thankfully I contributed on Saturday and last week," he told the Birmingham Mail.
"I just wanted to make a difference and hopefully I can keep it going. I really enjoyed the game because I thought I put in a really good team performance.
"Everyone was outstanding and we scored two good goals. Jody Craddock's on fire at the moment, so I don't think we've heard the last of him in front of goal!
"It was important to put in a team performance and you could see how much it meant to the players, staff, and, of course, the fans."