Ah, that's not bad at all.
Clear the extra stuff off your bed and make it. That way, you've got a comfortable place to sleep tonight. It'll take five minutes, maybe ten at a pinch.
In the morning, you'll need a couple of rolls of binbags.
First, break up the boxes, lay them flat and put into bin bags, then take them outside for recycling. Come back inside, have a cuppa.
Do the same with the paper bags, putting stuff in one place where it won't get trashed.
Come back in and do ten minutes in the kitchen: Take another bin bag and chuck the kitchen rubbish into it, take the bag you've already got on the kitchen floor out with you as well.
Come back in, make sure the sink is clear and clean so you can have drinks and you're done.
That'll take you probably three batches of twenty minutes, so an hour spread out over two, most likely (as breaks are important).
It looks like a lovely home that just needs a few minutes here and there to get it back how you'd like it.