Pompey have collected 19 points from a possible 21 following Saturday's 2-1 win over Nottingham Forest - their best run since the promotion season of 2002/03.
Cotterill said: "That win thrusts us right in there. We're a point off the play-offs and proud of our run. We're aiming for the top six.
"It's a good run, our best for eight seasons I've been told. It's important to keep it up. Everyone here at Pompey is enjoying themselves and it's about time.
"The players have been magnificent and the fans are up for it. I couldn't be happier at a club."
Source: PA
