With a season in League One approaching, Gardner is looking to take on more responsibility and play more games as Forest look to get promoted at the first attempt.
"I played 14 games in the league last year but there are 46 games in a season and I want to play in 30 or 35," he said.
"That's my aim for next season.
"We're hoping to bounce straight back next season and with the fans behind us, we're not going to be letting up."