QPR boss Mark Hughes has demanded his side avoid the mistakes they made after beating Liverpool at home and utilise the momentum from beating Arsenal.
Rangers lost 3-1 to Sunderland after beating the Merseysiders on 21 March.
"I talked about not letting that performance go to waste," Hughes said after the 2-1 win over the Gunners.
"We possibly did when we went up to the Stadium of Light and really under-performed. We must not allow that to happen again."
Despite a second successive home win, QPR remain in the relegation zone on goals scored and face a daunting run-in.
They travel to leaders Manchester United next before trips to Chelsea and Manchester City, but Hughes is focusing on the club's remaining home matches against Swansea, Tottenham and Stoke as vital to their survival.
"We have a huge test going to Old Trafford and that will be a measure of how we deal with going to away grounds and getting points on the board," he said.
"But the key will always be how many games we win here [at Loftus Road] from now until the end of the season.
"If we play like we did today and get the support like we did, then there is no stopping us."
The Welshman also paid tribute to playmaker Adel Taarabt who scored his first goal of the campaign in the win over Arsenal after finding the net 19 times in the Championship last season.
"Adel did a real defensive shift for us and the goal will do him the world of good," he added.
"He is a bit of a free spirit, but he just lacks a little guidance and that is what he craves.
"He just needs a plan he understands. I thought his defensive discipline was excellent, the best it has been, but he will always give you something in the final third.
"I will always give him the freedom to create because that is important to him and it is important to the team."