Fiding it difficult to live in a house with my ex

Because my ex lost his job, we are still living together in the same house.  We have made the decision to divorce and I am still trying to make peace with that.  On some days, I am pretty good with it.  On other days, I have a complete break down.  It is particularly hard, because my ex is not really speaking to me, except in the presence of the daughter.  I am finding this super stressful.  I used to get a break at least, when he went to work.  Now I get no break. . .I don't even want to come home after work.  I cry on the way home.  Last night I had a migraine so bad that I couldn't function.   Not even an ounce of empathy from my ex. . .
 
To top it all off, because he is not working, he is taking over all the parenting duties (while I slave away at work).  This I am finding hard, because my only motivation to get out of bed for the day was her.
 
I am feeling very depressed currently.  I see my counselor today and I am hoping that will help.   I am not sure that I am going to make it.  My emotions are all over the place and I cannot get anything done at work.  I start teaching next week and I  am not sure how I am going to manage it.   I cannot even work on the syllabus.