Love me or hate me. Be jealous of me or be happy for me. I dont care
Why dont you ask him if there is anything you can do to help out [do the dishes, wash clothes, hoover, change the sheets ect without him having to ask you first[ and try you know tidying up and helping him organise the meals. Do what you can to help.
Let him have like one hour to himself every now and again so he can relax too Work out the schedule with him for the next week so he knows what he has to do and what you will do to help. Let him watch a sport on the tv - make him the popcorn and let him enjoy little things too. He needs time to relax too.
I really hope everything works out and I does think your Dad really loves you and he could just do with the little break every now and again too.