Colyer was one of 34 current and former Bombers suspended for one-year for his part in the club’s 2012 supplements program.
The 25-year-old, who has played 57 games, said he did not know what to expect walking into what felt like a new environment after a year out of the game.
“It was almost a little bit like that feeling, not really knowing what to expect because it’s a new environment with a new coach (John Worsfold), although obviously we had him for a little bit (before being banned),” Colyer said on SEN Radio on Friday morning.
“It was a little bit nerve-racking but the support that we’ve had from not just the staff and the football department, but the fans as well has been overwhelming.”
Despite the difficult circumstances surrounding his 12 months off, Colyer said his time away from the game helped “reinvigorate” him leading into the 2017 season.
“Football is such an intense and consuming environment, any opportunity you can get to have some time away, not in the circumstances that you want, but it’s definitely reinvigorated me,” he said.
“My next development is hopefully to play a little bit more inside mid. I’ve been working hard on my stoppage craft.”