Pompey’s promotion charge took a dent with a narrow defeat to Fleetwood at Highbury Stadium.
But with the fixtures now coming thick and fast, Cameron McGeehan is determined to keep the faith.
There are back-to-back home tests against MK Dons and Rochdale in League One next week, providing an instant opportunity to bounce back.
McGeehan knows, however, that the Blues will need to improve on their display against a Cod Army outfit who leapfrogged them into the top six.
The midfielder said: “The conditions obviously come into play, but you’ve got to look at yourselves first and foremost.
“Our normal game just seemed to be lacking and that’s incredibly frustrating because we wanted to get the win.
"There’s still a long way to go and plenty can change. I know from my time at Barnsley last season that you have to keep going."
“The manager said at the break that we needed to be better in all areas and we did have a go, creating a few chances.
“You have to adapt to the conditions, but it’s the same for both teams and we couldn’t find a way through.
“It was quite a close game and could have gone either way, although on this occasion we just couldn’t find a goal.
“But there’s still a long way to go and plenty can change. I know from my time at Barnsley last season that you have to keep going.
“We’re not going to get too down about it. It’s important to stay positive because we’ve got two massive games next week.
“If we can win both of them at Fratton Park then we’re right back in the mix again, so we’re still feeling confident.”