England captain Lawrence Dallaglio insisted he had "no excuses" as his side retreated from the southern hemisphere with three losses.
Sir Clive Woodward's side were thumped 51-15 by Australia following back-to-back defeats to New Zealand.
Dallaglio insisted: "We've been well beaten in three Tests but I don't think we've played badly. Missed tackles and turnovers cost us dearly.
"But no excuses. We need to take stock and not panic. We'll be back."
England went down six tries to two against a rampant Wallaby side inspired by the incisive running of Joe Roff and the three-try display of last-minute substitute wing Clyde Rathbone, who replaced Wendell Sailor just before kick-off.
Dallaglio added: "Every time we turned over the ball they ran in for seven points.
"But one of the things about Australia is when they lose they don't panic. They go back and get it right and that's what we've got to do now."
Coach Clive Woodward admitted the last half-hour, when Australia scored 27 unanswered points, was a painful experience.
"It hurts a lot," he admitted. "We didn't play well in the first half, especially defensively, but we had the chance to come back when we got back to 24-15.
"I thought the true England was going to come out then but we had a bad last half-hour.
"We let in a couple of soft tries in the first half which is not what we are used to, and we just have to cop it again and try to regroup when we go home."