New York ? Brett Favre swears this is the real deal — no more last-minute comebacks.

The 39-year-old quarterback retired again Wednesday and insisted he won’t look back. Well, at least for now.

“I have no reason to wonder why you would be so skeptical,” Favre said Wednesday with a slight chuckle after announcing he was leaving the game after 18 record-setting seasons.

Favre, who retired last March only to return a few months later, kept this goodbye simple — no tearful farewell or jam-packed news conference. He spoke to the New York Jets on Wednesday morning, telling owner Woody Johnson, general manager Mike Tannenbaum and coach Rex Ryan that he was calling it a career.

“I have family and friends who are like, ‘All right, Brett. Is this the real deal?'” Favre said during a conference call. “To me, it is. It is. Believe me. It’s been a wonderful career, I couldn’t ask for anything more. It was worth a shot for me to go to New York. I wish I could’ve played better down the stretch. I didn’t.

“It’s time to leave.”

The Jets placed Favre on the reserve-retired list, meaning the quarterback’s retirement paperwork had been filed with the NFL — something he didn’t do last winter with the Packers.

“Emotionally, I’m OK with it,” said Favre, who spent the day on his bulldozer and doing yard work on the grounds at his home in Kiln, Miss. “I really felt like it was time. Obviously, the circumstances last year were a lot different. Physically, if I felt better, we may not be having this conversation, but I think that’s more than anything the writing on the wall.”

His decision came six weeks after his only season with the Jets ended in disappointment as New York went 1-4 down the stretch and failed to make the playoffs.

A major reason for the collapse was Favre, who threw nine interceptions in those five games. He said he played with a torn biceps tendon in his right shoulder that got worse later in the season.

If this is indeed it for Favre, he leaves the game with a slew of records, including career touchdown passes (464), completions (5,720), yards passing (65,127), regular-season victories (169) and interceptions (310).