"I was pretty cooked mentally and physically and I am looking forward to a couple of weeks off and heading back for the Australian summer," he added.
Smith's fantastic form in England also restored his place at the top of the ICC test batting rankings. "It was a nice reception when I walked off, would have been nice to have a few more runs under my belt," Smith said after he could only manage 23 runs in the second innings in the last Test.
Many people expected the 30-year-old to find it difficult to rediscover his form after he was making a comeback in the side following the 12-month ban for his role in the infamous ball-tampering scandal in South Africa last year.
However, Smith silenced his critics in the first Test itself after smashing a magnificent 144 on the opening day of the first Test at Edgbaston. He said the century in the first Test boosted his confidence.
"First Test is always important in an Ashes series and to pull the team out of trouble gave me the confidence to know I could slot straight back in and perform," Smith concluded.