Nigel Clough felt the Blades did enough in the second-half to beat Oldham Athletic on Boxing Day, but acknowledged his players had made it hard for themselves having gone in at half-time a goal behind.
Jonson Clarke-Harris put the Latics in front inside the opening five minutes as United were off the pace in the first-half, but a much improved display after the interval saw Jose Baxter score against his former club before the Blades laid siege to Mark Oxley's goal, seeing two late goal bound efforts cleared off the line.
Speaking afterwards, Clough gave his assessment on proceedings: "The first-half was unbelievably disappointing after the performance at Stevenage, followed by a good few days on the training ground.
"But the reaction in the second-half was excellent and we deserved to win the game. We have to keep doing the right things and our luck will change.
"We need a break, especially at Bramall Lane, how we didn't score a winner late on, given our pressure, is beyond me."
The Gaffer added: "The goal we conceded was a really poor one and again it knocked the stuffing out of us.
"Similar to the home game against Gillingham, we gave the opposition a huge lift and something to defend and fight for.
"We want to pride ourselves on giving nothing away, especially early on in games and if we hadn't conceded the goal, I have no doubts we would have won the game comfortably, that is the major disappointment.
"As the first-half wore on everyone got frustrated and the fans were entitled to vent their feelings at the break.
"But it seemed to spur the players on in the second-half and the first 15 or 20 minutes after the break is how we want to attack teams at home, on another day we would have got the winner."