Worrier

I've been a compulsive worrier for years

My mate said, "you don't seem to be worried about anything any-more"

"I hired a professional worrier for £1,000 a week" I said, "I haven't had a single worry since"

"A thousand a week!" they said. "How the hell are you going to pay him?"

"I don't care,

Spoiler:

that's his problem"