The Hornets played in the second division two years ago, winning just seven games and finishing third from bottom.
“I feel personally that I’ve got something to prove,” Smith told Love Rugby League.
“Last time I played Championship I think I let myself down. I wasn’t fit but this time I am much fitter and raring to go.”
Smith is confident the Hornets will hold their own in the Championship next season, after securing promotion.
“I think we’ll stay up,” he said.
“You only have to look at Swinton and Oldham last year. They both stayed up and both did really well.
“We’re all confident and we all believe in our abilities.”
According to the 28-year old Hornets head coach Alan Kilshaw has kept his instructions in pre-season simple, demanding a high tempo approach.
“He has wanted us to train in every session with as high intensity as we can,” he said.
“There’s no easy games in this league. We need to train hard so we’re ready for a game on Sunday afternoon and we’re battle hardened.”
Of the ten new signings Rochdale have brought in, Smith is particularly looking forward to being reunited with two former teammates.
“I have played with Rob [Massam] and Gary [Middlehurst] at Crusaders,” the forward said.
“They’re two quality signings. Miles [Greenwood] has been around a bit and he will bring valuable experience.”