I view “completely turned it around” as as 180 too. Think about it “I’ll turn this car around if you don’t quiet down” it means you’ll go the opposite direction. So “completely turning it around” means they did just that.
It's not the destination but the journey. In that 360 turn you may have looked inwards and at your past, identified failings of the past or remember things you forgot about that you loved. When you reach that 360 point you're more aware of what has been and may have a different outlook on what could be. Or something like that..