The Millers are looking for their third straight win tomorrow at Burton which could take them level with 7th placed Oxford, other results pending.
Harrison says there are a crucial run of matches coming up in the next four or five weeks with alot of Saturday-Tuesday football to be played.
He said: “Up to the end of March there are an awful lot of games, many against teams around us. You see it all the time. Teams come from nowhere and end up on a decent run and get themselves in the playoffs and after that, who knows?
“That's the way we've got to think about it. I know we keep saying we need a run, but a run also galvanises you and spurs you on. We all realise the position we are in the league doesn't reflect the squad we have got,” he added.
“We should be higher, we know that, but we've just got to tick these games off now.”