"The fans have every right to be excited," O'Donnell told the club's official website. "They have had a difficult season so far, and with the run we have been on recently you can't blame them for being optimistic about things.
"They will look at the table and see that we are mid-table now, midway through the season, and only five points off a play-off place, but unless we can keep up that consistency all that hype will have been for nothing.
"We have to keep focused, the fans have to remember that we will slip up sometimes, we can't win every game, but we want to.
"It is just up to us to keep grinding out results and the supporters to keep behind us and hopefully we will get there."