It's hard letting go "control" of being there with him all of the time,
but from all you've posted he is a sensible young man and he will do just fine.
Like Lexie says, it's hard getting started at a new job but in a few weeks
you'll adjust and feel right at home.
I am always really tired too when I am doing a new thing so be sure
to get plenty of sleep and good food as you make the transition
