Boreham Wood manager Ian Allinson hopes his side have no regrets after their FA Cup replay against Carlisle United.
The Conference South side travel to Cumbria on Tuesday after holding the League One club to a goalless draw in their original first-round tie.
"They need to enjoy themselves and play with freedom," he told BBC London 94.9.
"If we do that then we will get a performance. If people get nervous they will not perform to the level we know we can do."
He added: "If we have not been good enough we will accept that but if we come off and we could have done better or worked harder I will be disappointed with that.
"The main thing is not to have any regrets."
The Hertfordshire side have twice made the second round in their history, in 1996-97 and 1997-98, and a home tie against Brentford awaits the winners of Tuesday's replay.
Allinson, who had spells at Colchester, Arsenal and Luton during his playing days, knows that progressing in the competition could be lucrative for the non-league club.
"As a manager you get immensely proud of being involved as it gives the whole club and the town a bit of a buzz," the 56-year-old said.
"It is fantastic as it has given us a great platform and the publicity the club requires.
"We don't budget for the FA Cup money at the start of the season so there is no pressure on us. To get Brentford at home - could we get a TV game?
"It could be worth as much as £100,000 if we win the game. It would take a bit of pressure off the chairman financially and would give the club a stable background."
After a 0-0 draw at Meadow Park last Saturday, Allinson hopes his side can frustrate Carlisle again in the replay at Brunton Park.
"If we don't give any mistakes away or give them opportunities in the first 20 or 25 minutes they might start to become frustrated," he said.
"We know we can create chances against them. There have been bigger cup shocks than Boreham Wood at Carlisle, as we saw last year with Luton at Norwich.
"We have got nothing to lose so we will have a real good go and hopefully we can pinch the result."