Martin Kaymer is counting on home comforts to help him end his 19-month victory drought at this week's BMW International Open in Munich.
The 28-year-old reached the top of the world rankings with his victory at the HSBC Champions in November 2011, but that remains his last win worldwide.
The German is now the world No 35 following his 59th place finish at the US Open, but he is determined to put on a show for his home fans as he looks to inject fresh confidence into his game.
"It will work again, it has to work again, there is no other option," said Kaymer, who holed the putt that regained the Ryder Cup for Europe in last year's "Miracle at Medinah".
"I was the best player in the world two years ago, it has to work again. Ups and downs are normal but how long it will continue, it's hard to say."
Kaymer admitted his confidence was "lacking a bit", although he believes his slump in form could be attributed to homesickness having spent the last few months playing in the United States.
"It's little things like go picking stawberries, drinking a good cappuccino or eating some German bread that you miss," he added. "It really dawned on me at Christmas.
"This is the only tournament in Germany. I am really looking forward to it. I am well prepared and we'll see where I end up."
But Kaymer insisted he would not resort to employing a sports psychologist to help him regain faith in his own abilities.
"I don't need that, I don't want to sit myself down on a couch," he said. "When you trust in yourself, you don't need outside help, even if it takes maybe a bit longer. I'll get through this."