There were no cries of despair when Pompey were beaten by Rotherham last week.
So Christian Burgess will not be getting carried away after that was followed up by a 2-0 victory at AFC Wimbledon.
Goals from Brett Pitman and Conor Chaplin saw the Blues secure their first away win of the campaign.
Now Burgess wants to see them build on the result when they travel to Northampton on Tuesday evening.
He said: “We’ve got a few games coming up in a short space of time, so this was a good start for us.
“There will be tough matches in this league and you really can’t afford to take anyone for granted.
"There’s a lot of character in our dressing room and we’ll keep a level head."
“It was always going to be a difficult test at Wimbledon, but the lads stuck to the task well and the clean sheet was a bonus.
“Now we have to go to Northampton on Tuesday with the right attitude and try to carry on where we left off.
“We didn’t get too disheartened after the Rotherham game, just as we don’t get too high following a win.
“We just picked ourselves up. There’s a lot of character in our dressing room and we’ll keep a level head.”
Luke McGee did not have a difficult afternoon between the sticks, thanks to a dominant display from Burgess and his defensive colleagues.
The centre-back said: “Damien McCrory had a great debut at left-back, while we all know what Matt Clarke’s about and Nathan Thompson did brilliantly on the right.
“It was pleasing to be so solid because we’ve conceded a few more than we would have liked this season.
“All the lads are devastated for Jack Whatmough following his injury, but it’s important we stay focused and build a strong defensive unit.”