Grant McCann was disappointed with the 3-2 loss at Wycombe Wanderers - but insisted there will be now dwelling on the result.
Rovers led through goals from John Marquis and Tommy Rowe, but the Chairboys staged a dramatic fightback and nicked the points with a late Paris Cowan-Hall strike.
"At 2-0 up we changed our game and stopped putting the ball in behind the defenders, perhaps we thought the game was dead but that's come back to haunt us," McCann said.
"We got ourselves into a comfortable position and then we stopped doing what we had been doing to put us in the lead. We started taking four or five touches on the ball, and it was really immature from us. We had chances, we should have finished the game off, but we'll learn. That's a first for me, it's a first for few of the boys in there so we'll all learn from it and move on."
That was only the second defeat in 13 games for Rovers, and McCann expects a reaction when Burton Albion visit the Keepmoat Stadium on Saturday.
"It's always frustrating when you lose, now it's all about how we react - we've reacted well when we've lost games before," he added.
"We can't let something like that happen again and have to be more organised when we're winning, as we have been for most of the season. When we've scored, we've generally won - we can't dwell on it as the games are coming thick and fast."