It must be really hard to keep on top of it all if you have a toddler at home too and you are doing all the housework, as well as home educating your 11-year old.
I would say: get a housework routine set up (if you haven't already); and get your children involved. Why should you be doing all the work?
I'm home educating DS1 (11) and DS2 is at school. I use the Flylady system, which is basically planning a routine that works for you and sticking to it, as well as doing a daily extra job in the house every day. If I keep to the basic routines then the main housework is sorted. You can read more about the system here. However, I advise not joining up (you'll be inundated with emails and purple prose). Instead, you could pop over to the latest MN Flylady thread, which is here. It's a very friendly thread and several people on it have home educated or are home educating at the moment.
Since DS1 has stopped going to school, I have been getting him to do more in the house. Monday is our day to do a one-hour tidy and clean in the house and he now does his own room. He hoovers, makes his bed, puts his clothes away, empties his bin, tidies up and cleans his windows. I have to say that his enthusiasm for this has waned as the weeks have passed, but he still does it!
He is doing more around the house anyway since he has been off school and is now popping over to the local shop and cooking simple meals for us, all of his own initiative. This is building up his confidence and is certainly educational.
DS2 (5) has seen DS1 doing more and he is now helping out more too. He loves hoovering.
I work freelance at home and have to say that when I have work on as well and deadlines to meet (as now) the house descends into chaos. Housework and tidiness comes third on the list after home ed and work. I try not to get too stressed by it.