Now with 50 games to his name, Sexton will be the Bulldogs' most experienced playmaker for the first time on Sunday when he partners with Bailey Hayward.
The 24-year-old had a brief touch with seniority in Sunday's win over Gold Coast, taking on more organising and kicking when Burton went out with a knee injury.
But he is expected to take on extra responsibility this week against Parramatta, with Hayward named to start in the halves for the first time.
Turner's only other stint as the more experienced half came early in his career at Gold Coast, when he spent three games partnered with Paul Turner in 2022.
"Back at the Titans we were all pretty young then," Sexton said.
"Now though I feel like I'm evolving as a player and I've got a lot of great people around me.
"I've been able to bank heaps of reps over the pre-season and be that. I feel good with where it's at.
"I've got so many areas to improve on and I've just got to keep making sure my game's going on the increase each week."
Sexton also said Hayward had been a calming influence on him in the second half against the Titans, after a brief period with Stephen Crichton playing No.6.
The Bulldogs attack is likely to face change this week, given they are usually most dangerous down Burton's left edge where Viliame Kikau is also injured.
"Whether Burto's there or Burto's not there, I've got a lot of great people around me," Sexton said.
"When Burto went off (against Gold Coast on Sunday) there was no chaos, it's just calm throughout the whole team and we know exactly what our roles look like.
"It's just going to be a team effort and the more we can all come together as a team then we're going to be able to fill that void."
Sexton's career revival to leading the Bulldogs' attack is more notable when considering he was languishing in reserve grade at this point last year.
But with him in the side Canterbury's attack began to fire in the second half of last season, allowing for their most stable off-season in close to a decade.
Canterbury are now 2-0 for the first time since 2016, while their 68 points over the opening two rounds are the most the Bulldogs have scored since the start of 2006.
"It normally takes a few games to get going with that but it's nice to be able to put some points on the board," Sexton said.
"But we've got so many areas of improvement (to come) in our attack."
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