Yep, as Mustafa says, pal, you can forget a structured life from the day you arrive on line.
I did 25 years airline and you'll learn to sleep on your feet, in taxis, in the crewroom - in fact anywhere where you're in the same spot for a short while.
The best one is finishing on lates before maybe two days off and then rostered on earlies. Two days off ? Pull the other one, sunshine ! No wonder your kids get fed up.