The prevailing wisdom, be it at JetBlue Park or at Fenway Park, is the Red Sox will go only as far as Jon Lester takes them.

No pressure.

“I love it. Bring it on,” Lester said. “What you guys expect of me is nothing next to what I expect of myself. I expect a lot. I try to live up to my own expectations before anybody else’s.”

Lester fell woefully short of expectations last season, going 9-14 with a 4.82 ERA in 33 starts. Worse yet, the Red Sox went only 13-20 in games started by the two-time All-Star left-hander, whose slide really dates to his final four starts of 2011, when he posted an 8.24 ERA.

But Lester took responsibility for his struggles in a candid 16-minute session with reporters yesterday. He also showed an interest in taking the mantle from departed Josh Beckett as the leader of the pitching staff and vowed to be better at controlling his emotions on the mound.

Lester even flashed a few seldom-seen smiles and expressed an enthusiasm for playing in Boston, even though the Sox considered trading him to Kansas City this winter in a package that would’ve landed top prospect Wil Myers, a rumor Lester confirmed in a conversation with Royals manager Ned Yost, his neighbor in Georgia.

“I’ve been here since ’02. It’s kind of home, and I love it,” Lester said. “You understand the circumstances and the business side of it, but it’s always tough. The Red Sox are trying to put the best team on the field, and if that involves me going somewhere else, it’s tough, but there will be no hard feelings.”