Warnock lost his spot in the Blues side to Matthew Kreuzer and Shaun Hampson and only played five games for 2012.
Warnock said it had been one of his strongest pre-seasons yet, entering his seventh season in the league.
"I don’t think I've missed a session so far … to be out there and training, it's great because I've only done that probably one other pre-season, so hopefully it's a step in the right direction," Warnock said.
The 24-year-old Warnock, has never cemented his position at Carlton after crossing from Fremantle and missed the majority of last year after suffering a season-ending shoulder injury.
"Usually when you have surgery you take a step back, and then by the time the season comes around you’re kind of back to where you left off, so the fact I can actually start where I left off and build on that is great," he told CFC TV.
"I can actually put some weight on, so it's a good feeling.
"Just being out there and getting the k's in the legs is really good.
"There's no substitute for the fitness (you get) out there, so the fact that I'm out there hopefully means that I'm a step ahead of where I have been last year and years before," Warnock said.
Warnock also said that Mick Malthouse had already put his stamp on training, with the Blues undergoing shorter training sessions at higher intensity.
The Blues showed enormous confidence in Warnock by re-signing him until the end of 2015 halfway through last season.
"Hopefully that all adds up to improvement," he said.