Who said "I don't know what I'm doing half the time."?

This quote is attributed to Llewelyn Moss.

I don't know what I'm doing half the time. - Llewelyn Moss

"I don't know what I'm doing half the time."

Llewelyn Moss

Character in No Country for Old Men

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"You've got a lot of people looking for you."

"You're looking at a man that might not even be looking back at you."

"You ever feel like dying?"

"You never know what's going to happen next."