Matt Jarvis says West Ham United cannot afford to lick their wounds ahead of a vital Barclays Premier League meeting with Sunderland.
The Hammers go into Saturday's visit of the Black Cats having lost at Crystal Palace and Liverpool in their previous two matches, but Jarvis insists he and his team-mates will not be dwelling on those defeats.
Instead, the No7 said the players will take confidence from the 3-0 win over Fulham they achieved on their last home engagement on 30 November.
"We can't feel sorry for ourselves," said Jarvis. "We need to stay positive and make sure we are working extremely hard as we did at Liverpool and get that positive result we need to kick-start our season.
"It's definitely time to roll our sleeves up and fight. That's exactly what we need to do. However we get the three points, it doesn't matter what we do, we just have to get them and get ourselves up the league.
"We will try to do exactly what we did against Fulham when we face Sunderland on Saturday. If we do, then we'll get three much-needed points and hopefully we can do that on home turf."
Reflecting on Saturday's 4-1 defeat at Anfield, Jarvis felt West Ham competed well before falling behind to a Guy Demel own-goal four minutes before half-time. Mamadou Sakho's fortuitous finish made it 2-0 after half-time, while Liverpool's fourth goal also came via a huge deflection off substitute Joey O'Brien.
"We started the game well and created some good opportunities and could have gone in front and given ourselves something to really hold on to," said Jarvis. "To concede just before half-time shot ourselves in the foot.
"Of course it was very unlucky but it was disappointing to concede just before half-time, because that always makes things hard."
Manager Sam Allardyce has urged Jarvis and his colleagues to start scoring more goals. On Saturday, the winger played an integral part in West Ham's sole strike when his 66th-minute header was put past his own goalkeeper by Liverpool defender Martin Skrtel.
The goal sparked a period of West Ham pressure that could have culminated in an equaliser, but Jarvis and Modibo Maiga could not convert the opportunities that fell to them.
Luis Suarez made the game safe by heading in Glen Johnson's cross with nine minutes remaining before Kevin Nolan was sent-off and O'Brien's own-goal completed a frustrating afternoon on Merseyside.
"There was a build-up of play and then Guy cut back and put the cross in and I had to try and get to it at the far post," said Jarvis, when asked about the Hammers' goal. "As I couldn't put the ball back on target, I put it back in the mixer and luckily it went in.
"At 2-1 they looked a little bit nervy and we tried to get back level. He had a couple of chances to score and if you don't score in this league then you get punished, and we did."