"I'd like to take less and to a degree it's a problem. But I'm happy and I can afford it," the Sun quoted Michael, as saying.
Michael has also expressed contentment over the completion of half of his 100 hours' community service, which started after he admitted to driving under the influence of drugs.
"I scrubbed rooms and made fajitas for homeless people. I was quite good," he told Radio 4's Desert Island Discs.