Consistency was something that Pompey struggled with earlier in the campaign.
Victory would often be followed by defeat, as the Blues tried to get to grips with playing in League One.
But they have certainly managed to find their feet, securing four successive wins and seven from the past eight games.
Brandon Haunstrup has returned to the side for the latter part of that run and insists that he – and the team – are playing with plenty of belief.
The left-back said: “I think any side would be confident after winning four games in a row and we’ve beaten some good teams.
“I’m just trying to consolidate my place in the starting 11 and hopefully I’ll continue there for the rest of the season.
"The more I play, the more natural it feels."
“Getting forward has always been an important part of my game and the more I play, the more natural it feels.
“I’m building relationships with the guys in front of me, like Jamal, and it’s great to be working with them.
“But the Christmas period is always massive and every single player has to be ready because there are so many matches coming up.”
Bury were Pompey’s latest victims, as Matt Clarke’s second half header secured all three points at Fratton Park on Saturday.
Haunstrup said: “We carried some momentum into it from the previous week at Charlton, which helped to raise our confidence further.
“The performance against Bury deserved a win, although we didn’t quite figure it out. It felt like we could have gone on to score more.
“We looked comfortable, but just struggled to get the ball out wide enough and really get hold of the game.
“You’ve got to be patient, though, otherwise you’ll lose your focus and Bury certainly aren’t a bad team. I don’t think they deserve to be bottom of the table.
“It felt more comfortable at the end than it did against Charlton. Seeing things out is something we’ve been working on and it doesn’t just mean sitting back.”