Manager Michael Flynn says his squad will be keeping their feet firmly on the ground after making history by progressing through to the Carabao Cup fourth round.
The Exiles saw off Sky Bet Championship side Watford to surpass the third round stage of the competition for the first time.
Tristan Abrahams' penalty and Joss Labadie's strike gave County a two-goal advantage at the half-time break before Adalberto Penaranda converted his spot-kick to drag the visitors back into the tie.
Padraig Amond responded immediately for the Exiles to ensure the home side completed yet another cup upset against the Hornets, who saw Stipe Perica dismissed in the final stages.
It was the second time County have overcome Sky Bet Championship opposition this term after the 2-0 win against Swansea City in the first round, but Flynn insists his players will not be getting carried away.
"I thought it was fantastic performance and we outplayed a Championship club who have just come down from the Premier League," said Flynn.
"I thought we moved the ball really well, created some fantastic chances and the boys worked their socks off all over the pitch. I looked at the stats and we created far more than Watford.
"It’s fantastic that we’ve broken a club record and we're playing well but we can’t get carried away. I want to keep this momentum going."
Flynn rung the changes from Saturday's Sky Bet League Two win over Barrow, as Matty Dolan, Scot Bennett, Labadie, Amond and Abrahams were all brought into the starting line-up for the tie.
But his message to his players, who haven't failed in creating opportunities in front of goal this season, remained the same - score more goals.
"We made changes and I know they made a few but, let’s be honest, Watford have got a big pool to pick from, so it’s a huge achievement to reach the fourth round.
"We’ve been telling the players to score more goals from outside the box.
"It’s always nice to beat teams who are a couple of divisions higher than us, so it felt good."
County will now take on either Morecambe or Newcastle United, who go head-to-head this evening, in the fourth round at Rodney Parade.
"Morecambe will be looking to bounce back from their defeat on the weekend, and I know Derek [Adams] is a very hard-working man," Flynn added.
"He will want to cause an upset, so whoever it is, we’re at home and we’ve got to be ready for the challenge."