A Papa John’s Trophy win on Tuesday evening saw Pompey stretch their unbeaten run to five matches.
The success over Crystal Palace U21s came off the back of victories against Bolton and Harrow, as well as draws with Accrington and Cheltenham.
Now the Blues will be looking to continue building momentum when they travel to high-flying Wycombe this weekend.
But Lee Brown is not getting carried away by the recent improvement in form and is only focused on facing the Chairboys.
Pompey’s stand-in skipper said: “We’re pretty steady at the moment – we can’t get too high about things, but we can’t get too low either.
“I think all of our focus right now just has to go on the next game of football and that is Wycombe away.
"We’re pretty steady at the moment – we can’t get too high about things, but we can’t get too low either."
“You can talk about runs and going five unbeaten until the cows come home, but let’s just worry about Saturday.
“We’ll try to put on the best performance we can and then hopefully at 5pm we’ll have some more points on the board.
“I’m happy the game is going ahead because we just want to keep plodding away and trying to grind out results.”
Wycombe have enjoyed plenty of success in the past few years under boss Gareth Ainsworth, culminating in their 2019/20 rise into the Championship.
Brown said: “I know him quite well because I used to clean his boots when I was a young lad at QPR and he’s such a great guy.
“He’s done a fantastic job at Wycombe and is a winner, so you can’t knock that. But when you cross that white line, there are no friends.
“You’ve got to be ready for a battle and as a group we have to stand up to that and then try to implement our own game.”