The 2008 Olympic gold medallist has spent a large part of the past two years in the wilderness, but faces Gonzales at Wembley Stadium this weekend in a final eliminator for the IBF title.
"You could say I've become the forgotten man in the last couple of years but I'm in a fantastic position now, boxing a final eliminator in front of 80,000 at Wembley Stadium," DeGale told PA.
"I win this and I'm back in the big time. I'm in for a hard night's work but I'm feeling confident and just can't wait to do the business."
DeGale has won 18 of his previous 19 professional fights heading into the contest.