Parramatta superstar Jarryd Hayne says there is no reason why the Eels cannot win their first premiership in 23 years.

The bad news for the rest of the NRL is that he is determined to make it happen.

The 21-year-old NSW star has been in breathtaking form this season and the inspiration behind a run of six successive victories that have catapulted the ninth-placed Eels into finals contention.

Despite this, Daniel Anderson's men must beat Penrith, who sit in eighth, in what is likely to be a white-hot west Sydney derby at Parramatta Stadium on Friday to keep their season alive.

And with many doubting the Eels are the real deal, Hayne is putting big nights out on the backburner in a bid to ensure he is fully focused for the rest of the season.

"In the past, after a big win in a big game, I would be out on the weekend and out running amok, but on Friday I went home," Hayne said.

"The latest I have been out is on Saturday night when I went out for dinner. Two years ago that wouldn't be me. Now, instead, I was worrying about the Penrith game."

Hayne admitted belief among the Eels has grown with each win and the 26-18 win over Wests Tigers at Sydney Football Stadium last Friday was a special occasion.

"It was the biggest club crowd I have ever played in front of and it was great to run out in front of all the Parra and Wests Tigers fans," he said.

"We are all out here trying to win a premiership we are not leaving any stoned unturned, maybe we do have a better chance of winning it next season, but we will be doing all we can (this year)."

The 21-year-old said his new clean-living lifestyle has not only improved his performances, but also given him a better outlook on life.

"I just realised what I have, I keep relating to the World Cup and how much that made me realise what I have and what I was wasting," he said.

"A lot of players take it for granted playing in the NRL and I am trying to put my best foot forward."

He also said he wanted to avoid heading down the road of his father, former Souths star Manoa Thompson, when his career finished.

"My dad has been there from day one and good to go to for advice," he said.

"He went down the other road and the party lifestyle and lived it up and look at him now, he has to drive a truck to work and get up early in the morning because he didn't take advantage of what rugby league gave him."

Hayne said the pressure of not being able to lose any of their last six games is something the Eels have got used to.

"We are winning a lot of games but we are not in the eight, so every game is pressure," he said.

"We have taken a lot of confidence from winning and we need to keep the winning form up."

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