I'm sorry that you didn't get the time off, that seems like a bit of a dick move by your boss and he clearly isn't doing you any favours.
Winging it with some things works well and sometimes one needs a more structured approach, I personally think that you are being hard on yourself because you had expectations of it being different had your holiday panned out correctly. It sucks when things get jumbled, but the kitchen will get sorted, it will just take time. Don't lose heart, imagine how awesome it's going to be once it's done!