The 29-year-old enjoyed a bumper 2016, winning the Australian and U.S. Opens, picking up an Olympic silver medal and becoming the first German number one since Steffi Graf.
Her form, however, deserted her last year when she failed to win back-to-back matches at 13 events and made just one final, at Monterrey, to finish the year at number 22.
"You know, I think last year I will actually not speak about this anymore," she told reporters after defeating fellow German Anna-Lena Friedsam 6-0 6-4 at the Hisense Arena.
"I mean, last year was really not the best year, everybody knows, and it was a lot of new experience. But I'm also thankful about all the things, because I think I'm growing ..."
Kerber signalled her resurgence with her triumph at the Sydney International on Saturday and was optimistic about 2018 following her flawless start to the new season.
"I think so far it was a good season, the start of the good season, and I'm just trying to playing every single match each.
"I'm not trying to focusing too much on ahead, on past, or what's happened in the last year. I'm just trying to really restart again and try to enjoy my tennis again..."
Kerber will take on Donna Vekic of Croatia in her next match.
(Reporting by Amlan Chakraborty in New Delhi; editing by Peter Rutherford)
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