On your fridge you need a big sign that says: I have a new born and a toddler. Feed myself, baby & toddler and blow the rest.

How you are feeling is normal. Remember you have just had a baby and it is hard work with another child in the house.
Start with one or two chores on the list and gradually add to it. Once you get into a routine, well, as good of a routine that two children allow, you will start to feel better and get more done.
I find when I an tired I have trouble getting the housework done.
Don't stress out too much, enjoy your time getting to know your baby and playing with your toddler.