Bale has scored nine goals in his first 14 appearances for the Spanish giants since his record-breaking move from Tottenham in the summer.
"What he is doing is incredible," he told beIN Sport.
"He had a difficult start partly due to a small injury that he suffered.
"Also, he had great pressure on him but now he is in great form and we are all helping him.
"The fans love him now and he is a fantastic player who will help us to win trophies."
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