Graham cut short his loan at Hull City to return to Boro for the remainder of the season.
"I think it is a chance to kick-start my career. 2013 wasn't great for me," said Graham.
"All players go through bad spells, I'm not the type of person to get down about that, I always work hard and keep going.
"It's the first challenge for me, back to the Boro where it all started for me, so I'm really excited and looking forward to 2014.
"I'm taking each game as it comes.
"I've still got two years left at Sunderland after this season.